Patent Publication Number: US-9842473-B2

Title: Gaming machine

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims the benefit of Japanese Patent Application No. 2015-101231, filed on May 18, 2015, which application is incorporated herein by reference in its entirety. 
     FIELD OF THE INVENTION 
     The present invention relates to a gaming machine. 
     BACKGROUND OF THE INVENTION 
     As the conventional gaming machine, one type of a gaming machine has been known in which a part of a bet amount placed in a base game is accumulated at a predetermined percentage for each of a plurality of progressive bonus ranks whose payouts are different from one another each time a unit game is played, and the accumulated amounts of any of the progressive bonus ranks are paid out randomly by a drawing. For example, the conventional gaming machine has a plurality of bonus kinds as the progressive bonuses whose payouts being likely to be paid out are different from one another in amount, and probabilities with which the plurality of respective bonuses are won are set so as to be different from one another (refer to the specification of U.S. patent application Ser. No. 13/291,915 (U.S. Pat. No. 8,795,056)). 
     In addition, the above-mentioned gaming machine includes, for example, two displays. On one of the displays, presentation is performed such that in symbol display areas in which paylines are set, a plurality of symbol arrays are displayed in a rotating manner and a plurality of symbols are rearranged, and on the other of the displays, a kind or kinds of a bonus or bonuses among the plurality of bonus kinds, which is or are likely to be obtained, and a condition (a bet number and the like) required to play a bonus game are displayed. 
     In addition, there also has been known another type of a gaming machine in which in games such as a social networking service game using general game software and a general game apparatus, a payout of each of the above-mentioned plurality of ranks is replaced with points and items to be provided for a player as a profit (that is, a award). In other words, in the case of said one type of the gaming machine, when a bonus rank among the bonus ranks, whose payout is large, is won, the large payout can be obtained, and in the case of said another type of the gaming machine, when a bonus rank among the bonus ranks, whose rank is high, is won, a large number of points or a high score can be obtained, a large amount of virtual money can be obtained, or rare items can be obtained. Degrees of a profit to be provided for a player upon winning the respective plurality of bonus ranks are different from one another. 
     However, on the conventional gaming machine, states of the final game in which the previous player has played are displayed on the respective displays. Therefore, it is likely to cause the next player to erroneously recognize that winning probabilities of said gaming machine are low. As a result, it is likely that operation rates of specific gaming machines are reduced. 
     The above-mentioned problem is not limited to the gaming machines, but is likely to occur in game apparatuses for general social networking service games, arcade games, consumer games, and the like. 
     Therefore, an object of the present invention is to provide a gaming machine, a game apparatus, and a gaming system which are capable of avoiding the above-described problem. 
     BRIEF SUMMARY OF THE INVENTION 
     A gaming machine according to the present invention includes: a display part for displaying a plurality of awards in a first state (including a highlighted display state or a lighting-up display state) and a second state (including a darkened display state), payouts of the plurality of awards being different from one another; a storage part for storing a deposited bet amount, the deposited bet amount being allowed to be bet in accordance with a previously inputted game value; and a controller for subtracting a bet amount placed for a unit game from the deposited bet amount stored in the storage part and for displaying the awards having the different payouts in the first state and in the second state in accordance with the placed bet amount, the first state indicating activation that makes any of the awards obtainable, the second state indicating deactivation that makes the awards unobtainable, the controller determining that a game state is a non-play state when with reference to the storage part, the deposited bet amount stored in the storage part has reached an amount being less than a unit bet amount being required for a play, the controller comparing display states of all the awards and causing all the awards to be displayed in either of the first state or the second state. 
     In this configuration, when in the course of playing of a game by a player, when the deposited bet amount has reached the amount which is less than the unit bet (which is equivalent to “0 (zero)” in the below-described embodiment, and this state is a state in which a player has stopped the game), the controller determines that the game state is the non-play state. Thereafter, the controller controls the display part to switch the display mode, in which any one or any ones of the awards are displayed in the first state and the other award or awards are displayed in the second state, to the display mode in which all of the awards are displayed in either of the first state or the second state. 
     In other words, all of the awards are displayed in either of the first state or the second state, whereby a player looking at said display state is likely to recognize that the awards which are likely to be obtained are not limited in a biased manner. 
     That is to say, the situation where when a part of the awards is or are left in the state in which the part of the awards is or are not obtained, a player may erroneously recognize that on that gaming machine, there are some awards which are not obtained can be avoided. 
     More specifically, a player finishing the game or another player, who can be the next player thereon, looking at the gaming machine on which the game state is the non-play state expects that a profit of large payouts is likely to be obtained from said gaming machine in the initialized state (which is the display state in which all of the awards are likely to be obtained although it is unnecessary that all of the awards are internally activated) and thus, continues the game or newly plays a game. As a result, as compared with the conventional gaming machine in which upon finishing a game in association with a deposited bet amount becoming less than a unit bet, awards are displayed in a second state in which the awards are deactivated, indicating that the awards are not obtained, in the present invention, the awards are displayed in the display mode in which the display modes of all of the awards are unified in either of the first state or the second state. Hence, the situation where an operation rate of said gaming machine may be reduced due to the difference in the display mode can be avoided, and consequently, a profit of a gaming machine administrator is likely to be enhanced. 
     In the above-described configuration, the controller may control the display part when the game state is determined to be the non-play state as described below. 
     For example, when the controller determines that the game state is the non-play state, the controller may control the display part to display the awards displayed on the display part in the first state. 
     In this configuration, all of the awards displayed on the display part are activated, indicating that all of the awards are likely to be obtained. Accordingly, a player playing a game or other player deems that awards of large payouts are likely to be obtained from said gaming machine and continues a play of the game or newly starts a play of a game. Thus, an operation rate of said gaming machine is enhanced. 
     In a different embodiment, when the controller determines that the game state is the non-play state, the controller may control the display part to display the awards displayed on the display part in the second state. 
     In this configuration, all of the awards displayed on the display part are deactivated, indicating that all of the awards are not obtained. In other words, likelihood that a player may erroneously recognize that the gaming machine is in a state soon after the initialization (refreshing) of the gaming machine and becoming usable is raised. In other words, a player erroneously recognizes that on the initialized gaming machine, no awards of large payouts have not yet been obtained. Accordingly, a player playing a game or other player deems that awards of large payouts are likely to be obtained from said gaming machine and continues a play of the game or newly starts a play of a game. Thus, an operation rate of said gaming machine is enhanced. 
     In addition, the gaming machine according to the present invention includes a game value acceptance part for accepting the game value, wherein when the game value acceptance part has accepted the game value, the controller may return the display part to be in a display mode at a point in time when the game state is determined to be the non-play state. 
     In the above-described configuration, when the game value acceptance part has accepted the game value (a credit, coins, a token, a virtual currency, or the like), the controller returns the display part from the first state in which all of the awards including the awards of large payouts are likely to be obtained to the display state, which includes the second state, immediately before determining that the game state is the non-play state. A player looking at said display state deems that the state upon finishing a game is retained and in order to activate the awards of large payouts in the second state, continues a play on said gaming machine. In other words, a bet amount is increased, an operation rate of the gaming machine is enhanced. 
     In addition, in the gaming machine according to the present invention, after an elapse of a predetermined time period from the point in time when the game state is determined to be the non-play state, the controller may switch the display part to be in a display mode in which display modes of all of the awards are unified. 
     In the above-described configuration, despite the determination that the game state is the non-play state in association with the deposited bet amount becoming less than the unit bet (including a state in which a credit is 0 and is insufficient), after the elapse of the predetermined time period, the display modes of all of the awards are unified to be in the first state or the second state. In other words, a player erroneously recognizes that upon finishing a game, probabilities with which the awards are likely to be obtained are initialized. As a result, a player expects that the awards of large payouts are obtained and continues the game on said gaming machine to resume a play, thereby enhancing an operation rate of said gaming machine. 
     In addition, in order to achieve the above-described object, the present invention also discloses the below-described configurations. 
     A game apparatus includes: 
     a display part operable to display a plurality of awards in a first state and a second state, each of the plurality of awards being likely to be obtained depending on a result of a game executed, payouts of the plurality of awards being different from one another; 
     a first storage part for previously electronically storing a quantity of a game value (a credit, points, or a virtual currency), the game value being bet to trigger the execution of the game, 
     an input part for accepting a predetermined quantity of a consumption unit associated with the game value being bet to trigger the execution of the game, with an upper limit being the quantity of the game value inputted to the storage part, the consumption unit being accepted from among a plurality of patterns of consumption units (M bets or N bets: M&gt;N, the input part operable to accept a quantity, with an upper limit being a deposited quantity); 
     a second storage part for temporarily storing the consumption unit inputted to the input part, the consumption unit having a predetermined number; and 
     a controller for executing a first control process, a second control process, a third control process, and a fourth control process, wherein 
     in the first control process, any one or any ones is or are selected from the plurality of awards in accordance with the consumption unit inputted from the input part, the selected award or awards is or are previously set to be in a state in which the selected award or awards is or are likely to be obtained depending on the result of the game, and the award or awards which is or are not selected is or are set to be in a state in which the award or awards which is or are not selected is or are not obtained, 
     in the second control process, the display part is controlled to display a display mode or display modes of the award or awards being set in the state in which the award or awards is or are likely to be obtained depending on the result of the game in the first state, and a display mode or display modes of the award or awards being set in the state in which the award or awards is or are not obtained in the second state, in the third control process, it is determined whether or not the game value stored in the storage part has become less than the consumption unit, and 
     in the fourth control process, when in the third control process, it is determined that the game value stored in the storage part has become less than the consumption unit, the display mode or display modes in the first state and the display mode or display modes in the second state are compared, and the display mode or display modes in the first state and the display mode or display modes in the second state are unified in either of the first state or the second state (a normal lighting-up display state or a darkened display state by shading effects). 
     In this configuration, when the game value has become less than the consumption unit in association with the insufficient game value, from said point in time, the display state on the display part is switched to the first state in which the award or awards is or are likely to be obtained or to the second state in which the award or awards is or are not obtained. Accordingly, a player looking at the change on said display part erroneously recognizes that the game apparatus is initialized (refreshed) and awards whose payouts are large are likely to be obtained newly. Accordingly, a player continues to play a game, thereby enhancing an operation rate of the game apparatus. 
     It is to be noted that in this configuration, when after the game value has become less than the consumption unit, an additional game value is inputted to the first storage part, the controller may return the display state on the display part to the display state at the point in time when the game value has become less than the consumption unit. 
     In this configuration, when the game value (the virtual currency, for example, such as points and electronic money) has been accepted, the controller returns the display state on the display part in which the display modes are unified in the first state or the second state to the display state at the point in time when the game value has become less than the consumption unit. A player looking at said change in the display state deems that while the condition upon finishing the game is being retained, a player can continue to play the game, and therefore, continues the game in order to activate the award or awards which has or have not been obtained. Accordingly, an operation rate of the game apparatus is enhanced. 
     A gaming system includes: 
     a server apparatus; and 
     a communication terminal, 
     the server apparatus including:
         a communication part for enabling interactive communication of information between the server apparatus and the communication terminal;   a first storage part having a game program stored therein, the game program being delivered to the communication terminal,   a second storage part for storing identification information of the communication terminal (a password, an ID, a mail address, and the like) previously registered via the communication part;   a identifying part for identifying the identification information from the communication terminal; and   a control part for transmitting an entitlement to enable a profit to be likely to be obtained by a drawing (entitlement to continue a play by a credit) in response to information and a request related to a game which are transmitted from the communication terminal in accordance with an identifying result by the identifying part,       

     the communication terminal including:
         a communication part for enabling interactive communication of information between the server apparatus and the communication terminal;   an input part for inputting predetermined information;   a first terminal storage part for storing a game downloaded from the server apparatus;   a second terminal storage part for storing the information inputted from the input part; and   a display part for displaying the game to be executed and a variety of pieces of information, wherein       

     the communication terminal further includes a controller for executing steps (A) to (F):
         at step (A), a game value inputted to play a game is stored in the second terminal storage part;   at step (B), a predetermined quantity of a consumption unit (virtual electronic money such as credits and points, and the like) associated with the game value being bet to trigger the execution of the game is accepted, with an upper limit being the quantity of the game value inputted in the second storage part, the consumption unit being accepted from among a plurality of patterns of consumption units;   at step (C), in accordance with the information inputted from the input part of the communication terminal, any one or any ones is or are selected from the plurality of awards, the selected award or awards is or are previously set to be in a first state in which the selected award or awards is or are likely to be obtained depending on a result of the game, and the award or awards which is or are not selected is or are previously set to be in a second state in which the award or awards which is or are not selected is or are not obtained;   at step (D), the display part is controlled to display a display mode or display modes of the award or awards being set in the state in which the award or awards is or are likely to be obtained depending on the result of the game in the first state, and a display mode or display modes of the award or awards being set in the state in which the award or awards is or are not obtained in the second state;   at step (E), it is determined whether or not the game value stored in the second storage part of the communication terminal has become less than the consumption unit; and   at step (F), when it is determined that the game value stored in the storage part has become less than the consumption unit, display states in the first state and the second state are compared, the display states of the display on the communication terminal are unified.       

     In this configuration, when it becomes impossible to continue a play in association with a shortage of the game value, the display mode or display modes of the plurality of different awards displayed on the display part are unified in either of the first state or the second state. Therefore, a player deems that the game state upon finishing the game is initialized and awards whose payouts are large are likely to be obtained newly and continues to play a game on the communication terminal. As a result, an operation rate of a game played by using the communication terminal is enhanced. 
     The gaming system may be configured as described below: 
     after the game value has become less than the consumption unit, the communication terminal transmits to the server apparatus a request including the identification information to additionally input a game value; 
     the server apparatus identifies the communication terminal previously registered, from the identification information included in the request received by the identifying part from the communication terminal; and when the communication terminal has been registered in the server apparatus, the game value in accordance with the request is provided for said communication terminal, and the display mode on the display part is returned to the display mode including the first state and the second state upon finishing the game. 
     In this configuration, a game downloaded onto the communication terminal can be played free of charge, and moreover, when it becomes impossible to continue a play in association with the shortage of the game value, the request (charging) is transmitted to the server apparatus to supply the shortage of the game value, thereby allowing the display state on the display part to be returned to the state upon finishing the game in which the award or awards or the like are likely to be obtained and enabling a play to be continued. Accordingly, an operation rate of the game apparatus is enhanced. 
     The present invention is capable of allowing a game to proceed advantageously through the betting of a high bet number and further, changes the display modes of the awards displayed on the display part, thereby allowing a bet amount to be increased and thus, enhancing an operation rate of a gaming machine. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a flowchart of a display control process in a bonus game; 
         FIG. 2  is a diagram illustrating a screen showing payout tables displayed on a middle image display panel; 
         FIG. 3  is an explanatory diagram illustrating one example of a display screen displayed on the middle image display panel; 
         FIG. 4  is an explanatory diagram illustrating one example of a display screen displayed on the middle image display panel; 
         FIG. 5  is an explanatory diagram illustrating operation states of a gaming machine; 
         FIG. 6  is an explanatory diagram illustrating operation states of the gaming machine; 
         FIG. 7  is an explanatory diagram showing one example of the payout tables; 
         FIG. 8  is a table showing one example of symbol arrays in the base game; 
         FIG. 9  is a table showing one example of symbol arrays in the base game; 
         FIG. 10  is a table showing one example of symbol arrays in the base game; 
         FIG. 11  is a table showing one example of symbol arrays in the base game; 
         FIG. 12  is a table showing one example of symbol arrays in the base game; 
         FIG. 13  is a table showing one example of symbol arrays in free games; 
         FIG. 14  is a table showing one example of symbol arrays in the free games; 
         FIG. 15  is a table showing one example of symbol arrays in the free games; 
         FIG. 16  is a table showing one example of symbol arrays in the free games; 
         FIG. 17  is a table showing one example of symbol arrays in the free games; 
         FIG. 18  is a table showing numbers and percentages of special symbols in the base game; 
         FIG. 19  is a table showing numbers and percentages of special symbols in the free games; 
         FIG. 20  is an explanatory diagram illustrating a state in which a bonus game is triggered; 
         FIG. 21  is an explanatory diagram showing a functional flow of the gaming machine; 
         FIG. 22  is an explanatory diagram showing a functional flow of the gaming machine; 
         FIG. 23  is an explanatory diagram illustrating a connection configuration of a gaming system; 
         FIG. 24  is a block diagram of the gaming system; 
         FIG. 25  is a block diagram of a PTS system; 
         FIG. 26  is a perspective view illustrating a slot machine as the gaming machine; 
         FIG. 27  is an electrical block diagram of the gaming machine; 
         FIG. 28  is an explanatory diagram illustrating one example of a base game screen on a lower image display panel; 
         FIG. 29  is an explanatory diagram illustrating one example of a state in which the free games are triggered; 
         FIG. 30  is an explanatory diagram illustrating one example of a display screen in the free games; 
         FIG. 31  is an explanatory diagram illustrating one example of a display screen in a selection game; 
         FIG. 32  is an explanatory diagram illustrating one example of a display screen in the selection game; 
         FIG. 33  is an explanatory diagram of a scenario table; 
         FIG. 34  is an explanatory diagram illustrating one example of a display screen in the bonus game; 
         FIG. 35  is an explanatory diagram illustrating one example of a display screen in the bonus game; 
         FIG. 36  is an explanatory diagram illustrating one example of a display screen in the bonus game; 
         FIG. 37  is an explanatory diagram illustrating one example of a display screen in the bonus game; 
         FIG. 38  is an explanatory diagram illustrating one example of a display screen in the bonus game; 
         FIG. 39  is an explanatory diagram of a progressive challenge table; 
         FIG. 40  is an explanatory diagram of a progressive drawing table; 
         FIG. 41  is a flowchart of a base game execution process; 
         FIG. 42  is a flowchart of a free game execution process; 
         FIG. 43  is a flowchart of a bonus game execution process; 
         FIG. 44  is an explanatory diagram illustrating a HELP screen; 
         FIG. 45  is an explanatory diagram illustrating one example of a win presentation screen; 
         FIG. 46  is an explanatory diagram illustrating one example of the win presentation screen; 
         FIG. 47  is an explanatory diagram of a win rank table; 
         FIG. 48  is an explanatory diagram illustrating a WIN meter; 
         FIG. 49  is an explanatory diagram illustrating a control panel; 
         FIG. 50  is an explanatory diagram illustrating one example of a display screen on the lower image display panel; 
         FIG. 51  is an explanatory diagram illustrating one example of a display screen on the lower image display panel; 
         FIG. 52  is a diagram showing a display change flow in a GAMBLE game; 
         FIG. 53  is an explanatory diagram illustrating screens in the GAMBLE game; 
         FIG. 54  is an explanatory diagram illustrating an operation course in the GAMBLE game; 
         FIG. 55  is an explanatory diagram illustrating the operation course in the GAMBLE game; 
         FIG. 56  is an explanatory diagram illustrating the operation course in the GAMBLE game; 
         FIG. 57  is an explanatory diagram illustrating the operation course in the GAMBLE game; 
         FIG. 58  is a table showing one example of symbol arrays in the free games; 
         FIG. 59  is a table showing one example of symbol arrays in the free games; 
         FIG. 60  is a table showing one example of symbol arrays in the free games; 
         FIG. 61  is a table showing one example of symbol arrays in the free games; 
         FIG. 62  is an explanatory diagram illustrating one example of a display screen on the lower image display panel in a modification example; 
         FIG. 63  is an explanatory diagram illustrating one example of a display screen on the middle image display panel in the modification example; 
         FIG. 64  is an explanatory diagram illustrating one example of a HELP screen in the modification example; 
         FIG. 65  is an explanatory diagram of a WILD symbol drawing table in the modification example; 
         FIG. 66  is an explanatory diagram of a top symbol drawing table in the modification example; 
         FIG. 67  is a flowchart of a base game execution process in the modification example; 
         FIG. 68  is an explanatory diagram illustrating one example of a display screen on the lower image display panel in the modification example; 
         FIG. 69  is an explanatory diagram illustrating one example of a display screen on the lower image display panel in the modification example; 
         FIG. 70  is an explanatory diagram of a progressive initial value table in the modification example; 
         FIG. 71  is an explanatory diagram of a progressive default increment rate table in the modification example; 
         FIG. 72  is an explanatory diagram of a first bonus game drawing table in the modification example; 
         FIG. 73  is an explanatory diagram of a second bonus game drawing table in the modification example; 
         FIG. 74  is an explanatory diagram illustrating one example of a HELP screen in the modification example; 
         FIG. 75  is a table showing one example of symbol arrays in a base game in the modification example; 
         FIG. 76  is a table showing one example of symbol arrays in free games in the modification example; 
         FIG. 77  is a table showing one example of symbol arrays in the free games in the modification example; 
         FIG. 78  is a table showing one example of symbol arrays in the base game in the modification example; 
         FIG. 79  is a table showing one example of symbol arrays in the free games in the modification example; 
         FIG. 80  is a table showing one example of symbol arrays in the base game in the modification example; 
         FIG. 81  is a table showing one example of symbol arrays in the free games in the modification example; 
         FIG. 82  is a table showing one example of symbol arrays in the base game in the modification example; 
         FIG. 83  is a table showing one example of symbol arrays in the free games in the modification example; 
         FIG. 84  is an explanatory diagram illustrating one example of display screens on the lower image display panel and the middle image display panel; 
         FIG. 85  is an explanatory diagram of a coin presentation assignment table in the modification example; 
         FIG. 86  is an explanatory diagram illustrating one example of display screens on the lower image display panel and the middle image display panel; 
         FIG. 87  is an explanatory diagram illustrating one example of display screens on the lower image display panel and the middle image display panel; 
         FIG. 88  is a flowchart of a bet/start-check process; 
         FIG. 89  is an explanatory diagram illustrating one example of display screens on the lower image display panel and the middle image display panel; 
         FIG. 90  is an explanatory diagram illustrating one example of display screens on the lower image display panel and the middle image display panel; 
         FIG. 91  is an explanatory diagram illustrating one example of display screens on the lower image display panel and the middle image display panel; 
         FIG. 92  is an outline configuration diagram illustrating a gaming machine system in a modification example; 
         FIG. 93  is a block diagram illustrating the gaming machine system in the modification example; 
         FIG. 94  is an explanatory diagram illustrating one example of display images on a communication terminal in the modification example; 
         FIG. 95  is a flowchart of a credit purchase process in the modification example; 
         FIG. 96  is an explanatory diagram illustrating one example of display images on the communication terminal in the modification example; and 
         FIG. 97  is an explanatory diagram illustrating one example of display images on the communication terminal in the modification example. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Outline of Gaming Machine According to One Embodiment of The Present Invention 
     A gaming machine according to the present invention will be described with reference to the accompanying drawings. A slot machine as the gaming machine according to an embodiment of the present invention has a plurality of kinds of progressive payouts which are different from one another as awards (bonuses). With reference to  FIG. 1 , a configuration of the present invention is characterized in that a credit is accepted during a base game (S 1058 ); any of a plurality of kinds of bonus ranks in accordance with the accepted credit amount, which awards or award the plurality of kinds of progressive payouts is or are activated; and a main CPU  71  as a controller in the present invention executes display modification on a display part (S 1066 ). In other words, in the slot machine according to one embodiment of the present invention, when a bet amount in the base game is large, all of the bonus ranks are in a state in which the progressive payouts of all of the bonus ranks are likely to be obtained, and the state in which all of the bonus ranks are likely to be obtained is displayed on the display part so as to allow a player to visually recognize the state. In addition, when a bet amount is smaller than the bet amount which allows all of the bonus ranks to be likely to be obtained, all of the bonus ranks are not activated and a part of the bonus ranks which allows a large amount of a payout to be likely to be obtained is or are deactivated. 
     In order to notify a player of the above-mentioned state, under the control of the main CPU  71 , the display modification for the bonus rank or bonus ranks which is or are not activated is executed such that a gray layer is superimposed on an image or images of the above-mentioned bonus rank or bonus ranks to be displayed on the display part, thereby making it difficult to visually recognize the image or images, as compared with an image or images of the activated bonus rank or bonus ranks (S 1066 ). As described above, presentation display for the bonus ranks is executed in order to notify a player that the bonus ranks which are internally deactivated are not obtained and to notify a player of the bonus ranks which are likely to be obtained (S 1067 ). Of course, in order to more clearly display the deactivated bonus ranks, the image or images of the deactivated bonus ranks may be caused to disappear (non-display state). 
     In the present embodiment, there are four kinds of bonus ranks. Specifically, as shown in  FIG. 2 , as the bonus kinds (ranks), there are GRAND, MAJOR, MINOR, and MINI in the order of large payouts. These bonus ranks are displayed together with jackpot amounts (payout amounts), respectively on the later-described middle image display panel  142 . 
     The bonus ranks and the jackpot amounts displayed on the middle image display panel  142  are arranged such that a display mode is changed in association with the course of the base game, the interruption (non-playing state), and the resumption of a game after the interruption (S 1059 ). In other words, display areas of the bonus ranks and the jackpot amounts are arranged such that a first state of displaying in which the bonus rank or bonus ranks is or are activated so as to allow the jackpot amount or jackpot amounts to be likely to be obtained in accordance with a bet number (which is synonymous with the above-mentioned bet amount) and a second state of displaying (the image or images with the gray layer being superimposed to be displayed) in which the bonus rank or bonus ranks is or are deactivate so as not to allow the jackpot amount or jackpot amounts to be obtained are switched at appropriate timing. 
     The first state and the second state are displayed, for example, as shown in  FIG. 3 , on the display part of the middle image display panel  142  as described below. Here, in the first state, the bonus ranks of MAJOR, MINOR, and MINI are activated among the bonus ranks. In order to clearly indicate that said bonus ranks are activated, normal lighting-up displaying is conducted so as to allow a player to recognize the ranks and the payout amounts (in a state in which the gray layer is not superimposed on the images to be displayed and the visual recognition is not difficult). 
     In the second state, the bonus rank of GRAND is deactivated. Accordingly, in order to suggest a player that said bonus rank is deactivated so as not to be obtained, the gray layer is superimposed on the image to be displayed so as to hardly visually recognize characters of the rank and the payout amount. The display control process in a bonus game in which the display mode is switched between the first state and the second state on the display part of the middle image display panel  142  will be described below in detail. There is a reason for causing GRAND as the bonus rank, which allows a high amount of a payment to be likely to be obtained, not to disappear so as not to completely visually recognize GRAND. Specifically, by displaying the image of GRAND in the state in which it is difficult to visually recognize the image of GRAND and displaying the progressively changed payout amount ($8,888,90) as a numerical value, advantages are obtained in that a player is psychologically prompted so as to add a bet number in order to activate GRAND and in that a player is psychologically prompted so as to bet a bet number which allows GRAND of the bonus rank to be activated in the subsequent base games. 
     (Display Control Process of Bonus Ranks) 
     With reference to a flowchart in  FIG. 1 , a display control process of the bonus ranks will be described. A credit number which a player has previously deposited and is to be consumed for betting during a base game is stored in a credit number storage region of a storage part. 
     First, upon staring a new game, since a credit number in the storage part is “0”, it is detected whether or not any credit (bill(s) or the like) is inputted from a bill entry  22  (S 1058 ). When no credit is inputted (S 1058 : NO), the process shifts to S 1061  (a gaming state comes to be a standby state in which a display state is maintained as it is without returning the display on the display part to the original display as at S 1060 ). When a credit is inputted (S 1058 : YES), a number of the credit is temporarily stored in the credit number storage region of the storage part. When any credit number has already remained in the credit number storage region, the inputted credit number is added to said remaining number of the credit (S 1059 ). 
     In association with the addition of the credit number, the display on the display part of the middle image display panel  142  is changed (S 1060 ). In other words, the display state on the display part is returned to the display state upon finishing the game prior to inputting the credit. Specifically, based on a program transmitted from the CPU  71 , a display state on a graphic board  130  (refer to  FIG. 27 ) comes to be in a state in which one part of the plurality of bonus ranks are activated and the other thereof is deactivated as shown in  FIG. 3  or comes to be in a state in which all of the bonus ranks are deactivated as shown in  FIG. 4 , changed from the normal lighting-up display state in which all of the bonus ranks displayed on the display part of the middle image display panel  142  are activated as shown in  FIG. 2 . It is to be noted that at S 1060 , the bonus ranks which are displayed on the display part of the middle image display panel  142  in the activated modes retain conditions upon finishing the previous game, and the activated bonus ranks displayed thereon are set as the bonus ranks which are also internally likely to be obtained. 
     Next, the CPU  71  being equivalent to the controller in the present invention shown in  FIG. 27  determines whether or not the credit number stored in the credit number storage region of a RAM  73  which is the storage part is less than a unit bet including “0” (S 1061 ). 
     First, a case where in said determination result, the CPU  71  has determined that a value stored in the credit number storage region is not less than the unit bet (S 1061 : NO) will be described. 
     The CPU  71  permits the acceptance of operation of BET buttons (a 1-BET button  34 , a 2-BET button  35 , a 3-BET button  36 , a 4-BET button  37 , and a 5-BET button  38 ; and credit buttons  40  to  44 ) shown in  FIG. 49  (S 1062 ). 
     Next, the CPU  71  determines whether or not the operation of any of the BET buttons has been detected (S 1063 ). When it is detected by a BET switch (any of a 1-BET switch  34 S, a 2-BET switch  35 S, a 3-BET switch  36 S, a 4-BET switch  37 S, and a 5-BET switch  38 S) that any of the BET buttons has been pressed down by a player, based on a signal of that kind of the BET button, the CPU  71  subtracts the consumed credit number from the deposited credit (being equivalent to a deposited bet amount in the present invention) stored in the credit number storage region of the RAM  73  (S 1064 ). When the CPU  71  has determined that the operation of any of the BET buttons is not detected (S 1063 : NO), the CPU  71  returns to the process at S 1058 . 
     Upon receiving a signal of any of the BET switches  34 S to  38 S, the CPU  71  executes processes of determination of the display of the bonus ranks in accordance with the bet number ( 51065 A), of determination of special symbols whose numbers are increased in accordance with the bet number (S 1065 B), and of determination of display presentation in accordance with the bet number (S 1065 C). The details of definition of the special symbols and the process for determining the special symbols whose numbers are increased in accordance with the bet number will be described later. 
     In the determination of the display of the bonus ranks (S 1065 A), the bonus ranks of GRAND, MAJOR, MINOR, and MINT are associated with the bet numbers, respectively. In other words, the CPU  71  selects any of the bonus rank whose payout is higher in accordance with an increase in a bet number. For example, when any of bet numbers of an uppermost limit and a second upper limit is detected, the CPU  71  selects the display of the bonus rank of said GRAND whose payout is the largest. 
     In the determination of the special symbols whose numbers are increased in accordance with the bet number (S 1065 B), in accordance with an increase in a bet number placed, a percentage of a number of special symbols  503  to a number of all of symbols  501  in a plurality of symbol arrays  170  is increased. In other words, the CPU  71  modifies the symbols to the symbols  501  arrayed in said plurality of symbol arrays  170  based on WILD symbol increased number determination table data indicating a WILD symbol increased number determination table. 
     In the determination of the presentation display in association with the bet number (S 1065 C), based on a game program stored in the RAM  73 , the graphic board  130  executes an execution instruction for a bonus of the rank selected by the CPU  71 . 
     As described above, upon completing preprocessing of the presentation display at S 1065 A to S 1065 C, the graphic board  130  executes the displays of a still image and a moving image generated on the lower image display panel  141  and the middle image display panel  142  (S 1066 ). For example, at this point in time, on the display part of the middle image display panel  142 , as shown in  FIG. 3 , the bonus ranks (MINI, MINOR, and MAJOR) which are activated in accordance with the bet number are displayed in the normal lighting-up manner and the bonus rank (GRAND) which is deactivated and whose image is made gray is displayed. In other words, in order to suggest a player that the GRAND rank whose payout amount is large is deactivated so as not to allow a payout of the GRAND rank to be likely to be obtained, the gray layer is superimposed on the image so as to hardly visually recognize the characters of GRAND and the payout amount. 
     As described above, while the inputted credit number is not less than the unit bet required to execute the game, the CPU  71  permits the execution of the base game with the credit being consumed from the deposited credit number (being equivalent to the deposited bet amount in the present invention) stored in the credit number storage region of the RAM  73 . 
     When the credit number has become less than the unit bet at S 1061  (S 1061 : YES), the CPU  71  counts a predetermined time period (for example, 120 ms) up to the acceptance of a credit such as bills or the like by the bill entry  22  by using a timer (S 1068 ). For example, without providing the predetermined time period, immediately when the credit number has become less than the unit bet, it also can be determined that the game state is the later-described non-play state. 
     When the predetermined time period has not passed at S 1068  (S 1068 : NO), the CPU  71  determines that a play state is continuing and retains the display state as it is. 
     When no credit is added within the predetermined time period at S 1068  (S 1068 : YES), that is, when any credit is not added during the predetermined time period and the stored credit number does not come to be the unit bet number or more, the CPU  71  determines that the game state is the non-play state in which the game has been finished. At this time, the display states displayed on the lower image display panel  141  and the middle image display panel  142  are temporarily stored in a storage region of the RAM  73  (S 1069 ). In the present embodiment, the credit number which is less than the unit bet is set to “0 (zero)”. However, in a case where the credit number is converted to a bet number, when the bet number is equivalent to a credit number being less than the lowest bet amount which allows the base game to be executed, it also can be determined that the game state is the non-play state. By arranging the configuration as described above, it is made possible to avoid the situation where although a player has left the slot machine after finishing the game without settling the accounting and the game has been actually finished, the display is not modified to the display in the non-play state. 
     When the display states on the lower image display panel  141  and the middle image display panel  142  are retained at S 1069 , based on the program transmitted from the CPU  71 , the graphic board  130  modifies the display areas of all of the bonus ranks and the payout amounts displayed on the display part of the middle image display panel  142  in the normal lighting-up display state as shown in  FIG. 2  (S 1070 ). The diagram in  FIG. 3  shows the display screen on the middle image display panel  142 , illustrating the state in which the part of the plurality of bonus ranks are activated and the other part thereof is deactivated. The diagram in  FIG. 4  shows the display screen on the middle image display panel  142 , illustrating the state in which all of the bonus ranks are deactivated and the gray image of the bonus ranks is displayed. 
     In other words, executed is the display modification from the state in which it is difficult to visually recognize the image of the bonus ranks which is stored upon finishing the game, the image having the gray layer superimposed thereon, to the state in which it is easy to visually recognize the image in the normal lighting-up state. Here, the control for the display modification on the display part at the above-described step S 1066  and the control for the display modification on the display part at step S 1070  are different from each other in that at S 1066 , the bonus ranks displayed in the activated display mode on the display part (middle image display panel  142 ) are also internally set as the bonus ranks which are likely to be obtained, whereas at S 1070 , in the display modification on the display part, although one part of the bonus ranks internally remains as the bonus ranks which are not obtained, all of the bonus ranks are displayed on the display part as bonus ranks which are activated in a pseudo manner. 
     At step S 1060 , the above-described image upon finishing the game at S 1069  is displayed on the middle image display panel  142 , and the internally activated bonus ranks and the bonus ranks displayed in the activated manner indicating the activation are displayed so as to match each other. 
     As described above, at S 1070 , all of the bonus ranks including the bonus ranks which are internally not activated are displayed on the display part of the middle image display panel  142  as the bonus ranks which are activated in the pseudo manner. Thus, the likelihood with which in the standby state time in which a player is waiting for the next game after finishing a game, the effect for inducing a player is enhanced is boosted, as compared with a case where one part of the bonus ranks is not displayed in an activated manner. 
     Outline of Gaming Machine Definition 
     The above-described “slot machine  10 ” is one kind of a game terminal of a gaming machine  300 . It is to be noted that in the present embodiment, although the slot machine  10  will be described as one example of the game terminal, the present invention is not limited thereto, and a model including a terminal controller capable of independently executing some sort of a base game is applicable as a game terminal. 
     A base game in the present embodiment is executed by the slot machine  10 . The base game is a slot game in which a plurality of symbols  501  are rearranged. The base game is not limited to the slot game, and it is only required for the base game to be a game which can be independently executed on a game terminal such as the slot machine  10 . In other words, the base game is a game whose concept is opposed to the concept of a common game. For example, a base game and a bonus game are classified as the base game. 
     The rearrangement of symbols in the slot game is conducted on a lower image display panel  141 . The slot game may have the base game, the bonus game, a rescue process, and the like. In the base game, a process in which with betting of a game value as a condition, the symbols are rearranged on the lower image display panel  141  and a normal payout associated with the rearranged symbols is awarded is executed. The bonus game is executed when the symbols are rearranged under a predetermined condition in the base game. 
     A “bonus game” is synonymous with a feature game. It is only required for the bonus game to be a game whose play state is more advantageous than that of the base game, and the bonus game may be any kind of a game. In addition, when it can be arranged that the play state of a game is advantageous for a player, that is, the play state thereof is more advantageous than that of the base game, the bonus game may be combined with other kind of a bonus game to be adopted. For example, the bonus game may be realized by combining a state in which a game value larger than that obtained in the base game can be obtained, a state in which with a probability higher than that in the base game, a game value can be obtained, a state in which a number of the consumed game value is smaller than in the base game, and other state, or singly setting each of the above-mentioned states. 
     For example, the bonus game may be a fixed-payout game, and the bonus game may be a free game which is executed with betting of a game value whose amount is smaller than that in the base game (also including 0) as a condition. In addition, the bonus game may be a game in which a symbol drawing table whose payout rate is higher than that in the base game is used. In addition, the bonus game may be a pick-out bonus game in which a plurality of choices are presented to a player in a selectable manner. In the case of the pick-out bonus game, the choices may include the fixed payout game, the free game, and the like. In addition, in the choices of the pick-out bonus game, triggering of the pick-out bonus game as a choice to be selected by a player may be further included. It is preferable that the choices of the pick-out bonus game are randomly arranged. In addition, it is preferable that in a stage prior to the selection of any of the choices by a player in the pick-out bonus game, the contents of the choices are non-displayed. The details of the bonus game in the present embodiment will be described later. The rescue process is executed when a rescue start condition is established. 
     The “gaming value” is coins, bills, or electronic valuable information corresponding to these. It is to be noted that the gaming value in the present invention is not particularly limited, and for example, may be gaming media such as medals, a token, electronic money, and a ticket. The ticket is not particularly limited, and for example, may be the later-described ticket with a barcode and the like. In addition, as described above, the “game value” may be electronic game points being equivalent to the gaming media. 
     The “free game” is a game which can be executed with the smaller amount of a game value than that in the base game. The case where the free game can be executed with the smaller amount of the game value includes a case where the bet amount is “0”. Accordingly, the “free game” may be a game which is executed without setting the betting of the game value as the condition, and a game value whose amount is associated with the rearranged symbols  501 . In other words, the “free game” may be a game which is started without presupposing the consumption of the game value is paid out. In contrast to this, the “base game” is the game which is executed with the betting of the game value as the condition, and in which the game value whose amount is associated with the rearranged symbols  501  is paid out. In other words, the “base game” is a game which is started with the consumption of the game value as a precondition. 
     A state of the “rearrangement” means a state in which after the arrangement of symbols has been released, the symbols  501  are again arranged. A state of the “arrangement” means a state in which a player can visually confirm the symbols  501  externally. 
     The “normal payout associated with the rearranged symbols  501 ” means a normal payout corresponding to a winning combination of the rearranged symbols  501 . In addition, the “bonus payout associated with the rearranged symbols  501 ” means a bonus payout corresponding to a winning combination of the rearranged symbols  501 . The “winning combination” means that an award is established. The details of the winning combination will be described later. 
     (Functional Flow of Gaming Machine  300 : Slot Machine) 
     As shown in  FIG. 21 , a gaming machine  300  configured as described above has slot machines  10  and an external control device  621  (center controller  200 ) which is connected to the slot machines  10  so as to allow data communication therewith. The external control device  621  is connected to a plurality of slot machines  10  installed in a hall so as to allow data communication therewith. 
     The slot machines  10  has a BET button  601 , a SPIN button  602 , a display  614 A (a lower image display panel  141  or the like in  FIG. 5 ), a display  614 B (a middle image display panel  142  in  FIG. 5 ), and a game controller  100  for controlling the above-mentioned parts. Each of the BET button  601  and the SPIN button  602  is a kind of an input device. Further, the slot machine  10  has a transmission/reception part  652  which allows data communication with the external control device  621 . 
     The above-mentioned BET button  601  has a function to accept a bet amount through the operation by a player. The SPIN button  602  has a function to accept the start of a game such as a base game through the operation by a player, that is, a start operation. 
     The display  614 A s has a function to display still image information such as a variety of symbols  501 , numerical values, and characters and moving image information such as presentation images. Further, the display  614 A has a touch panel  69  as an input device and has a function which allows a variety of instructions to be accepted through the pressing-down operation by a player. The display  614 A has a symbol display area  150 , an image display area  614 B, and a common game display area  614 C. In the symbol display area  150 , a reel screen including the symbols  501  shown in  FIG. 5  is displayed. In the image display area  614 B, a variety of pieces of information of images of presentation to be executed during the progress of a game are displayed by moving images and still images. In the common game display area  614 C, a common game is displayed. 
     For example, in the image display area  614 B, presentation display related to the bonus game as described above is conducted. 
     In the present embodiment, the symbol display area  150  and an area for displaying choice images  1421  in the bonus game are set on the same one screen of the lower image display panel  141 . However, the present invention is not limited thereto. In addition, the common game display area  614 C may be formed together with the symbol display area  150  and the image display area  614 B and may be caused to appear through the replacement only when the common game is executed. 
     As shown in  FIG. 21 , the display  614 B has an image display area  614 D and has a function to display the still image information such as the numerical values and the characters and the moving image information such as the presentation images on said image display area  614 D. For example, the bonus ranks, the money amounts, and payout tables shown in  FIG. 2  are displayed thereon. In addition, on said display area, each of the moving images is displayed also so as to be superimposed on each of the still images. 
     The game controller  100  has a coin-insertion/start-check part  603 , a base game execution part  605 , a bonus game start determination part  606 , a bonus game execution part  607 , a random number value extraction part  615 , a symbol determination part  612 , a presentation random number value extraction part  616 , a presentation content determination part  613 , a speaker part  617 , a lamp part  618 , a winning determination part  619 , a paying-out part  620 , and a predictive presentation part  651 . 
     The base game execution part  605  has a function to execute the base game, with the operation of the BET button  601  as a condition. Based on a combination of the rearranged symbols  501  in the base game, the bonus game start determination part  606  determines whether or not the bonus game is executed. In other words, when TRIGGER symbols  504  or the like are rearranged on a predetermined condition, the bonus game start determination part  606  determines that a bonus game is won and has a function to shift the processing to the bonus game execution part  607  so as to execute the bonus game from the next unit game. 
     Here, the “unit game” is a game in which a series of operations from the start of the acceptance of betting to the establishment of winning are conducted. For example, the unit game of the base game includes one time of betting time in which the betting is accepted; one time of game time in which stopped symbols  501  are rearranged; and one time of paying-out time in which a paying-out process for awarding a payout is conducted, respectively. It is to be noted that the unit game in the base game is referral to as a unit base game. Although in the present embodiment, a time period from when a player operates the SPIN button and displaying the symbols in a varying manner is started to when the symbols are rearranged is set to approximately three seconds, the present invention is not limited thereto. 
     The bonus game execution part  607  has a function to repeatedly execute a free game at a plurality of times only through the operation of the SPIN button  602  and has a function to choose one from a plurality of the choice images  1421  in the bonus game. 
     The symbol determination part  612  has a function to determine symbols  501  to be rearranged by using random number values from the random number value extraction part  615 ; a function to rearrange the determined symbols  501  in the symbol display area  150  of the display  614 ; a function to output rearrangement information of the symbols  501  to the winning determination part  619  and the predictive presentation part  651 , respectively; and a function to output a presentation designation signal to the presentation random number value extraction part  616  based on a state of the rearranged symbols  501 . 
     When the winning determination part  619  can obtain the rearrangement information of the symbols  501  which are rearranged on the display  614 , the winning determination part  619  has a function to determine whether or not winning has occurred; a function to calculate a total amount of a payout based on a winning combination when it is determined that the winning has occurred; and a function to output a paying-out signal based on the amount of the payout to the paying-out part  620 . The paying-out part  620  has a function to pay out a game value in the form of coins, medals, a credit, and the like. In addition, the paying-out part  620  has a function to add credit data corresponding to the paid-out credit to credit data stored in an IC card which is inserted into the later-described PTS terminal  700 . 
     Further, the game controller  100  has a storage part  661  for storing a variety of pieces of bet amount data. The storage part  661  is a device such as a hard disk device and a memory for storing data in a rewritable manner. Said storage part  661  is equivalent to the storage part in the present invention. 
     Further, the game controller  100  has a common game execution part  653 . The common game execution part  653  has a function to output bet amount information based on a bet amount placed in the base game to the external control device  621  for each unit base game; a function to execute the common game based on a game start instruction from the external control device  621 ; and a function to accept a bet input by the BET button  601 , which is stored in the storage part  661 , with respect to a bet amount corresponding to common game bet amount data indicating bet amounts which can be bet for a common game. 
     In addition, the game controller  100  is connected to the PTS terminal  700 . The PTS terminal  700  is a unit into which an LCD, a microphone, a human body detection camera, and the like are integrated and has, for example, a function to present a game through the mutual communication with the game controller  100 . In particular, the PTS terminal  700  is provided with a card insertion slot, thereby allowing an IC card to be inserted thereinto. Thus, a player inserts the IC card into the card insertion slot and can use a credit stored in the IC card on the slot machine  10 . 
     In addition, upon receiving the credit data from the PTS terminal  700 , the game controller  100  updates a credit display in a display frame provided in a lower portion of the display  614 B. Further, when the settlement for the game has been made, the game controller  100  outputs the settled credit data to the PTS terminal  700 . 
     In addition, the PTS terminal  700  which each of the plurality of slot machines  10  constituting the gaming machine  300  has is connected to a management server  800  which collectively manages downloading of images, an IC card, and a credit. 
     (Functional Flow of Gaming Machine  300 : External Control Device) 
     As shown in  FIG. 22 , the slot machine  10  configured as described above is connected to the external control device  621 . The external control device  621  has a function to perform remote operation and remote monitoring of processes such as the modification of operating states and a variety of game setting values of a plurality of slot machines  10 . Further, the external control device  621  has a function to determine a common game start condition for each of game terminals which are the slot machines  10 ; and when the external control device  621  has obtained a determination result which satisfies the common game start condition on any of the game terminals, to execute the common game or the like on the plurality of slot machines  10 . 
     In more detail, the external control device  621  has a common game start part  6213 , a game terminal selection part  6215 , and a transmission/reception part  6217 . The common game start determination part  6213  has a function to determine whether or not the common game start condition is established based on accumulated values of the bet amount information, each of which is transmitted in each unit base game from each of the slot machines  10 ; a function to output the game start instruction to each of the plurality of slot machines  10 ; and a function to display a state until the establishment of the common game start condition on the PTS terminal  700 . 
     The determination of whether or not the common game start condition is established is conducted based on the accumulated values of the bet amount information and in addition thereto, can be conducted based on all of accumulated values whose number is increased by repeating the unit base game. For example, a number of times at which the base game is repeated and periods of time during which the base game is repeated may be the accumulated values. 
     Further, the common game start part  6213  has a function to output a game start instruction to each of the slot machines  10 , on which the accumulated values whose number is increased by repeating the base game satisfies a game execution condition. Thus, the common game start part  6213  does not qualify a slot machine  10 , on which the total of the accumulated values is less than the lowest set value, to participate in the common game, and therefore, it is made possible to motivate a player to actively repeat the base game. 
     Further, the common game start part  6213  has a function to monitor a non-inputting time during which the start operation is not conducted and to output the game start instruction to each of the slot machines  10  except each of the slot machines  10 , on which the non-inputting time is a time-out time or more. Thus, it is made possible for the common game start part  6213  to determine that a player is not present on each of the slot machines  10 , on which the base game is not executed over the time-out time or more, thereby allowing the execution of the common game on such a slot machine  10  to be avoided. 
     The game terminal selection part  6215  has a function to select specific slot machines  10  from among the plurality of slot machines  10  and to output a common game start instruction signal to each of said slot machines  10 . The common game start instruction signal is to authorize each of the specific slot machines  10  to start the common game. The transmission/reception part  6217  has a function to allow the data to be transmitted and received to and from the slot machines  10 . 
     (Operation of Gaming Machine  300 ) 
     The operation of the gaming machine  300  including the above-mentioned functional blocks will be described. Although in the present embodiment, the “game terminal” in the diagrams means a slot machine  10  for executing a slot game, the present invention is not limited thereto. 
     (Operations of Slot Machine  10 ) 
     The slot machine  10  which is the game terminal executes a terminal side process. Specifically, first, a base game process (for a base game or the like) is executed. The below-described series of operations are executed. 
     (Credit Input/Start-Check) 
     First, after inputting a credit, the slot machine  10  checks whether or not a BET button part  601  has been pressed by a player, and subsequently checks whether or not a SPIN button part  602  has been pressed by a player. 
     (Symbol Determination) 
     Next, when the SPIN button part  602  has been pressed by a player, the slot machine  10  extracts symbol determination random number values and determines symbols  501  to be displayed to a player at the time of stopping scrolling of symbol arrays  170 , for a plurality of respective video reels displayed on a display  614 A. 
     (Symbol Display) 
     Next, the slot machine  10  starts the scrolling of the symbol arrays  170  of the video reels and then stops the scrolling such that the determined symbols  501  are displayed to a player. 
     (Winning Determination) 
     Next, when the scrolling of the symbol arrays  170  of the video reels has been stopped, the slot machine  10  determines whether or not a combination of symbols displayed to a player is a combination associated with winning. 
     (Paying-Out) 
     Next, when the combination of symbols  501  displayed to a player is a combination associated with winning, the slot machine  10  awards benefits associated with a kind of the combination of the symbols to a player. 
     For example, when a combination of symbols  501  associated with a payout of coins has been displayed, the slot machine  10  pays out coins whose number corresponds to the combination of the symbols  501  to a player. 
     Next, it is determined whether or not winning of a bonus combination has occurred. When the winning of the bonus combination has occurred, a bonus game process is executed. Specifically, when TRIGGER symbols  504  whose number is a predetermined number or more have been rearranged in a symbol display area  150 , the execution of free games is determined, and a drawing to determine whether or not a bonus game is executed is conducted. On the other hand, when the winning of the bonus combination has not occurred, the base game is executed again. In a period of time in which the base game including these base game and bonus game is executed, pieces of execution state information indicting the start and finishing of a unit game such as the base game and a bet amount in the unit game are transmitted to an external control device  621 . Thus, the pieces of the execution state information of each of the slot machines  10  are collectively managed on the external control device  621 . 
     (Operations of External Control Device  621 ) 
     When the slot machines  10  are operating as described above, the external control device  621  is executing a center side process described below while synchronizing with each of the slot machines  10 . 
     First, the external control device  621  receives the execution state information from each of the slot machines  10  and acquires an execution state of the base game. Thereafter, based on a number of times at which the base game is repeated, accumulated bet amounts, and the like, the external control device  621  determines whether or not a common game start condition has been established on any of the slot machines  10 . When the common game start condition has not been established, the external control device  621  continues the acquisition of the execution state of the base game on each of the slot machines  10 . 
     On the other hand, when the common game start condition has been established, the game start instructions are concurrently outputted to the slot machines  10 , each of which satisfies the game execution condition. Thereafter, specific slot machines  10  from among the slot machines  10  satisfying the game execution condition are selected, and a common game start authorization instruction is outputted to each of the specific slot machines  10 . 
     Next, the external control device  621  waits until the common game start instruction transmitted from each of the specific slot machines  10  is received. When the common game start instruction has been received, with this reception as a trigger, winning or losing in the common game is determined as a game result. For example, any of winning, losing, and a draw is determined. When it is determined that the game result is not the draw, at least one part of the game result of the draw is skipped from a series of game results temporarily stored, and the remaining game results are sequentially outputted to each of the slot machines  10  as the game result information. 
     Thereafter, based on the game results, in each of which winning or losing has been determined, it is determined whether or not winning in the common game has occurred. When the losing has occurred, an execution state of the base game is newly acquired on each of the slot machines  10 . On the other hand, when the winning has occurred, based on the bet amount placed in the common game on each of the slot machines  10 , a money amount to be paid out is calculated, and the calculated money amount is transmitted to each of the slot machines  10  as paying-out information. 
     (Overall Configuration of Game System) 
     A gaming system  350  which includes gaming machines  300  having the above-described functions will be described. 
     As shown in  FIG. 23 , the gaming system  350  includes a plurality of slot machines  10  and an external control device  621  which is connected to each of the slot machines  10  via a communication line  301 . 
     The external control device  621  is to control the plurality of slot machines  10 . In the present embodiment, the external control device  621  is the so-called hall server which is installed in a game facility having the plurality of slot machines  10 . Each of the slot machines  10  is provided with a unique identification number, and the external control device  621  identifies transmission sources of data transmitted from the respective slot machines  10 . In addition, in a case where data is transmitted from the external control device  621  to the slot machines  10 , the identification numbers are used for specifying the transmission destination. 
     It is to be noted that the gaming system  350  may be constructed within a single game facility where various games can be conducted, such as a casino, or may be constructed among a plurality of game facilities. In addition, when the gaming system  350  is constructed in a single game facility, the gaming system  350  may be constructed in each floor or section of the game facility. The communication line  301  may be a wired or wireless line, and a dedicated line, an exchange line, or the like can be adopted. 
     As shown in  FIG. 24 , the gaming system includes three blocks which are a management server block, a customer terminal block, and a staff terminal block. The management server block has a casino hall server  850 , an exchange server  860 , a casino/hotel staff management server  870 , and a download server  880 . 
     The casino hall server  850  is a server for managing the whole casino hall in which slot machines  10  are installed. The exchange server  860  is a server for preparing exchange rate data based on exchange information or the like. The casino/hotel staff management server  870  is a server for managing staff of a casino hall or a hotel related to the casino hall. The download server  880  is a server for downloading, for example, the latest information such as information related to games and news and for notifying a player of such information through a PTS terminal  700  of each of the slot machines  10 . 
     In addition, the management server block has a membership management server  810 , an IC card &amp; money management server  820 , a megabucks server  830 , and an image server  840 . 
     The membership management server  810  is a server for managing membership information or the like of a player playing each of the slot machines  10 . The IC card &amp; money management server  820  is a server for managing an IC card used on each of the slot machines  10 . Specifically, the IC card &amp; money management server  820  is a server for storing fractional cash data so as to be associated with an identification code and for outputting the fractional cash data to the PTS terminal  700 . The IC card &amp; money management server  820  also prepares and manages denomination rate data or the like. The megabucks server  830  is a server for managing, for example, a game of megabucks in which the total sum of wagers placed on a plurality of slot machines  10  installed in a plurality of casino halls or the like is to be a payout. The image server  840  is a server for downloading, for example, the latest images such as images related to a game and news and for notifying a player of the latest images through the PTS terminal  700  of each of the slot machines  10 . 
     The customer terminal block has a slot machine  10 , a PTS terminal  700 , and a settlement machine  750 . The PTS terminal  700  can be attached to the slot machine  10  so as to allow mutual communication with the management server  800 . The settlement machine  750  is a machine for exchanging cash data stored in an IC card, which a player has, for money for settlement and for storing cash data of coins, bills, or the like in the IC card. 
     The staff terminal block has a staff management terminal  900  and a membership card ticketing terminal  950 . The staff management terminal  900  is a terminal with which staff of a casino hall manages the slot machines  10 . In particular, in the case of the present embodiment, the staff of a casino hall manages whether a number of IC cards which are stocked in the PTS terminal  700  is in excess or in shortage. The membership card ticketing terminal  950  is a terminal used when a player playing a game in a casino hall issues a membership card. 
     (PTS Terminal  700 ) 
     As shown in  FIG. 25 , the PTS terminal  700  is incorporated into a PTS system. The PTS terminal  700  attached to a slot machine  10  is connected to a game controller  100  and a bill validation controller  890  of the slot machine  10  so as to be capable of communicating therewith. 
     The PTS terminal  700 , for example, updates presentation of a game by sounds, images, and the like and credit data in the communication with the game controller  100 . In addition, the PTS terminal  700  transmits credit data required for the settlement in the communication with the bill validation controller  890 . 
     In addition, the PTS terminal  700  is connected to the management server  800  so as to be capable of communicating therewith. The PTS terminal  700  communicates with the management server  800 , using two lines which are a general communication line and an additional function communication line. 
     On the general communication line, the PTS terminal  700  communicates, for example, data such as cash data, identification code data, membership information of a player, and the like. On the other hand, on the additional function communication line, the PTS terminal  700  performs communications related to newly added functions. In the case of the present embodiment, on the additional function communication line, the PTS terminal  700  performs communications related to an exchange function, an IC card function, a biometric identification function, a camera function, and an RFID (Radio Frequency IDentification) function which is a function to perform solid identification using radio waves. 
     (Mechanical Configuration of Slot Machine) 
     With reference to  FIG. 26 ,  FIG. 27 , and  FIG. 36 , an overall configuration of a slot machine  10  will be described. 
     In the slot machine  10 , used as gaming media are coins, bills, or electronic valuable information being equivalent to these. In particular, in the present embodiment, credit-related data such as cash data stored in an IC card is used. 
     The slot machine  10  has a topper device  2  and a gaming machine main body  5  with the topper device  2  provided on its upper surface wall. The gaming machine main body  5  has a top device  3  which includes two image display panels  141  and  142  (displays  614 A and  614 B shown in  FIG. 21 ) and an apparatus main body  4  with the top device  3  provided on its upper surface wall. 
     The topper device  2  has a function to make the slot machine  10  conspicuous even from a remote location and has a function to allow the contents of a game on the slot machine  10  to be visually recognized even from the remote location. 
     The top device  3  has a function to display game related information such as specific contents of a game, bonus ranks, payout amounts, payout tables, and rules. The apparatus main body  4  has a function to execute a game. 
     The topper device  2  is provided on the upper surface wall of the top device  3  so as to be located on the highest position of the slot machine  10 . The topper device  2  has a rotation axis which coincides with a vertical direction of the slot machine  10  and is configured to be rotatable within a predetermined angle in a normal direction and a reverse direction, with this rotation axis as the center. Thus, the topper device  2  is operable to switch between a front posture in which a display face  2 A of a liquid crystal display device for displaying the game contents faces forward and a slanting posture in which the display face  2 A face slantingly forward. The front posture is a posture which is adopted in a normal state such as when a game is executed and when the game is in a standby state so as to allow people being far away from the slot machine  10  (players, persons related to a game arcade, and the like) to visually recognize game contents. On the other hand, the slanting posture is a special posture which is adopted when the display in the topper device  2  is modified. The slanting posture allows the work of modifying the display in the topper device  2  from a front side of the slot machine  10  by positioning a side plate cover  216  (replacement mechanism) located in an edge portion of a right side of the topper device  2  on a front side. 
     In addition, the top device  3  has a top box  31  and a middle image display panel  142  (liquid crystal display device), which is provided on a front face of the top box  31 , for displaying bonus ranks, payout amounts, payout tables, and the like. 
     A front face and a lower face of the apparatus main body  4  are opened. A screen displayed on the lower image display panel  141  has a symbol display area  150  in its central portion. The symbol display area  150  is constituted of 15 display blocks  28 , that is, 5 columns×3 rows. Three display blocks  28  of each of the respective columns form each of pseudo reels  151  to  155 . The three display blocks  28  are displayed in a downward moving manner while a speed is wholly being changed, whereby each of the pseudo reels  151  to  155  is operable to move symbols  501  displayed in the display blocks  28  in a vertical direction in a rotating manner (displayed in a varying manner) and thereafter, to stop the display blocks  28  for the rearrangement. The details of the display screen of the lower image display panel  141  will be described later. 
     It is to be noted that although in the present embodiment, the case where the slot machine  10  is the so-called video slot machine is described, in the slot machine  10  according to the present invention, the so-called mechanical reels may be substituted for a part or all of the pseudo reels  151  to  155 . 
     On a front face of the lower image display panel  141  (liquid crystal display device), a touch panel  69  is provided. The touch panel  69  allows a player to touch and operate a display screen of the lower image display panel  141  and to thereby input a variety of instructions. An input signal is transmitted from the touch panel  69  to a main CPU  71  (refer to  FIG. 27 ). 
     Below the lower image display panel  141 , a control panel  30  is arranged. As shown in  FIG. 49 , the control panel  30  includes a variety of buttons, a coin entry for accepting coins into a cabinet  11 , a bill entry, and the like. On the control panel  30 , a TAKE WIN/COLLECT button  32  and a SERVICE button  45  are arranged in positions in an anteroposterior direction from a player&#39;s side toward the depth. Onto the right side of the TAKE WIN/COLLECT button  32 , a GAMBLE button  31  is arranged. On the central rear side thereof, a 1-BET button  34 , a 2-BET button  35 , a 3-BET button  36 , a 4-BET button  37 , and a 5-BET button  38  are arranged. Further, on the control panel  30 , a PLAY 8 CREDITS button  40 , a PLAY 18 CREDITS button  41 , a PLAY 38 CREDITS button  42 , a PLAY 68 CREDITS button  43 , and a PLAY 88 CREDITS button  44  are arranged on the central front side. The control panel  30  includes a SPIN button  46  in a lower portion of an area on the right side. In addition, although not shown, LEDs are incorporated into the buttons  31  to  38  and the buttons  40  to  46  so as to be operable to be turned ON/OFF. The details of the control panel  30  will be described later. 
     A lower door device  1043  onto which a controller  30  is attached has a front mask part  1043   c  which is arranged in the central portion of an upper part thereof; speaker parts  1043   a  and  1043   b  which are arranged so as to be bilaterally symmetric with the front mask part  1043   c  as the center; a PTS part  1043   d ; and a bill part  1043   e  which is arranged on the right side of the PTS part  1043   d . Further, the lower door device  1043  has a control panel part  1043   f  which is arranged below the PTS part  1043   d  and the bill part  1043   e ; a bill cover part  1043   g  which is arranged below the right side of the control panel part  1043   f ; and a lower front cover part  1043   h  which is arranged on the left side of the bill cover part  1043   g . These parts  1043   a  to  1043   h  are formed by incorporating a variety of members into a lower door base member  1438 . 
     The front mask part  1043   c  has a front mask cover  431  having a top part on the front side, on the frontmost face. The speaker parts  1043   a  and  1043   b  have speaker covers  432   a  and  432   b , which have a multitude of holes, on the frontmost face and speakers which are arranged on the rear sides of the speaker covers  432   a  and  432   b . The PTS part  1043   d  has a PTS cover  434  on the frontmost face and the PTS cover  434  is replaced with a FTS terminal  700  to be attached, not shown, as necessary. 
     The PTS terminal  700  has integrated thereinto a variety of devices having a microphone function, a camera function, a speaker function, a display function, and the like, thereby forming one unit. Specifically, the PTS terminal  700  has an LCD, a human body detection camera, a microphone, bass reflex type speakers, and the like. The human body detection camera is operable to detect, with the camera function, whether or not a player is present. The microphone is used to allow a player to participate in a game with his or her voice and to authenticate a player with voice recognition. The speakers perform presentation of a game with audio and output sounds for notifying that an IC card is left unremoved. Further, the speakers output notification sounds also in a case when the authentication of an inserted IC card fails. 
     In the PTS terminal  700 , LEDs and a card insertion slot are provided. The LEDs notify a player of the remaining number of IC cards accumulated in a card stacker through lighting-up in a plurality of colors. The card insertion slot has a mechanism with which IC cards are inserted or removed. An IC card has a display part. Although while a player is playing a game, the IC card is completely inserted thereinto, upon the settlement, the IC card is ejected such that the display part thereof is exposed. Thus, a player can confirm credit-related data such as updated cash data. Further, the IC card may be retained without being completely inserted thereinto even while a player is playing a game such that the display part thereof is exposed. Thus, a player can confirm a view in which a credit is updated during a play of a game. 
     Upon the settlement of a credit, in a case when it is detected by using the human body detection camera that a player is not present, the IC card is drawn there inside and is kept in the card stacker. Thus, for example, even in a case when a player has confirmed with the display part that an amount of the remaining credit is small and has left his or her seat intentionally with the IC card being left, it does not occur that the IC card is left inserted for a long period of time. 
     In addition, as described above, in the PTS terminal  700 , a VFD  177  is provided. As shown in  FIG. 26 , in the central portion of the VFD  177 , a game status area  1620  is provided to be operable to display a status of a game. In the game status area  1620 , a bonus state  1621 , a winning content  1622 , an obtained credit  1623 , and the like are displayed. In addition thereto, a CREDIT meter, a total bet number meter, a denomination meter, a line meter, a BET meter, and a win meter are displayed. 
     (Electrical Configuration of Slot Machine) 
     Next, with reference to  FIG. 27 , a configuration of circuitry which a slot machine  10  includes will be described. 
     A gaming board  50  is provided with: a CPU  51 , a ROM  52 , and a boot ROM  53 , which are mutually connected by an internal bus; a card slot  55  corresponding to a memory card  54 ; and an IC socket  57  corresponding to a GAL (Generic Array Logic)  56 . 
     The memory card  54  is constituted of a non-volatile memory and stores a game program and a gaming system program. The game program includes a program related to game progression and a program for executing presentation by images and sounds. In addition, the above-mentioned game program includes a symbol determination program. The symbol determination program is a program for determining symbols to be rearranged in display blocks  28 . 
     In addition, the game program includes: base game symbol table data showing a base game symbol table which indicates a correspondence relationship of each symbol of each symbol array of each display block, each code No., and each random number value; bonus game symbol table data showing a bonus game symbol table which indicates a correspondence relationship of each symbol of each symbol array of each display block, each code No., and each random number value; symbol No. determination table data showing a symbol No. determination table; code No. determination table data showing a code No. determination table; WILD symbol increased number determination table data showing a WILD symbol increased number determination table; a TRIGGER symbol increased number determination table data showing a TRIGGER symbol increased number determination table; odds data which indicates a correspondence relationship of each kind and each number of symbols rearranged on each activated line and each payout amount, and the like. 
     In addition, the card slot  55  is configured such that the memory card  54  can be inserted thereinto and removed therefrom and is connected to a motherboard  70  by an IDE bus. Accordingly, a kind and the contents of a game to be played on the slot machine  10  can be changed by pulling out the memory card  54  from the card slot  55 , writing another game program into the memory card  54 , and inserting the memory card  54  into the card slot  55 . 
     The GAL  56  is a kind of PLD (Programmable Logic Device) having a fixed OR array structure. The GAL  56  is provided with a plurality of input ports and output ports, and predetermined input into the input port causes output of the corresponding data from the output port. 
     In addition, the IC socket  57  is configured such that the GAL  56  can be inserted thereinto and removed therefrom and is connected to the motherboard  70  by a PCI bus. The contents of the game to be played on the slot machine  10  can be changed by replacing the memory card  54  with another memory card  54  having another program written therein or by rewriting the program written into the memory card  54  as another program. 
     The CPU  51 , the ROM  52  and the boot ROM  53  mutually connected by the internal bus are connected to the motherboard  70  by a PCI bus. The PCI bus enables a signal transmission between the motherboard  70  and the gaming board  50 , and power supply from the motherboard  70  to the gaming board  50 . 
     The ROM  52  stores an authentication program. The boot ROM  53  stores a pre-authentication program, a program (boot code) to be used by the CPU  51  for activating the pre-authentication program, and the like. 
     The authentication program is a program (tamper check program) for authenticating the game program and the gaming system program. The pre-authentication program is a program for authenticating the aforementioned authentication program. The authentication program and the pre-authentication program are written along a procedure (authentication procedure) for proving that the program to be the subject has not been tampered. 
     The motherboard  70  is configured by using a commercially available general-purpose motherboard (a printed circuit board on which basic components of a personal computer are mounted) and includes a main CPU  71 , a ROM (Read Only Memory)  72 , a RAM (Random Access Memory)  73 , and a communication interface  82 . It is to be noted that the motherboard  70  is equivalent to a game controller  100  in the present embodiment. 
     The ROM  72  is constituted of a memory device such as a flash memory and stores a program such as a BIOS (Basic Input/Output System) to be executed by the main CPU  71  and permanent data. When the BIOS is executed by the main CPU  71 , processing for initializing predetermined peripheral devices is conducted; further, through the gaming board  50 , processing of loading the game program and the gaming system program stored in the memory card  54  is started. It is to be noted that in the present invention, the ROM  72  may be a memory whose contents are rewritable or are not rewritable. 
     The RAM  73  stores data and programs such as a symbol determination program which are used in operation of the main CPU  71 . For example, when the processing of loading the above-mentioned game program, gaming system program, or authentication program is conducted, the RAM  73  can store the program. The RAM  73  is provided with working areas used for operations in the execution of these programs. Examples of the areas include: an area that stores counters for managing the number of plays, the number of BETs, the number of payouts, the number of credits and the like; and an area that stores symbols (code numbers) determined by a drawing. 
     The communication interface  82  is to communicate with the external control device  621  such as a server, through the communication line  301 . Further, the motherboard  70  is connected with the later-described door PCB (Printed Circuit Board)  90  and a main body PCB  110  by respective USBs. The motherboard  70  is also connected with a power supply unit  81 . Further, connected to the motherboard  70  is a PTS terminal  700  by a USB. 
     When the power is supplied from the power supply unit  81  to the motherboard  70 , the main CPU  71  of the motherboard  70  is activated, and then the power is supplied to the gaming board  50  via the PCI bus so as to activate a CPU  51 . 
     The door PCB  90  and the main body PCB  110  are connected with input devices such as switches and a sensor, and peripheral devices, the operations of which are controlled by the main CPU  71 . 
     The door PCB  90  is connected with a control panel  30 , a reverter  91 , a coin counter  92 C and a cold cathode tube  93 . 
     The control panel  30  is provided with a COLLECT switch  32 S, a 1-BET switch  34 S, a 2-BET switch  35 S, a 3-BET switch  36 S, a 4-BET switch  37 S, a 5-BET switch  38 S, a PLAY 8 CREDITS switch  40 S, a PLAY 18 CREDITS switch  41 S, a PLAY 38 CREDITS switch  42 S, a PLAY 68 CREDITS switch  43 S, a PLAY 88 CREDITS switch  44 S, a service switch  45 S, and a spin switch  46 S which correspond to the above-mentioned respective buttons. Each of the switches outputs a signal to the main CPU  71  upon detection of press of the button corresponding thereto by a player. 
     Inside of a coin entry  39 , the reverter  91  and the coin counter  92 C are provided. The reverter  91  identifies whether or not coins inputted into the coin entry  39  are legitimate and revers coins other than legitimate coins are discharged from a coin payout exit. In addition, the coin counter  92 C detects the accepted legitimate coins and counts the number thereof. 
     The reverter  91  operates based on a control signal outputted from the main CPU  71  and distributes legitimate coins validated by the coin counter  92 C into a hopper  113  or a cash box. That is, coins are distributed into the hopper  113  when the hopper  113  is not filled with coins, while coins are distributed into the cash box when the hopper  113  is filled with coins, respectively. 
     The cold cathode tube  93  functions as a backlight installed on the rear face sides of a presentation mechanism  131  and a lower image display panel  141  and lights up based on a control signal outputted from the main CPU  71 . 
     The main body PCB  110  is connected with the presentation mechanism  131 , speakers  112 , the hopper  113 , a coin detection part  113 S, a touch panel  69 , a bill entry  22 , a graphic board  130 , a key switch  173 S, and a data display  174 . The speakers  112  output sounds such as BGM, based on a control signal outputted from the main CPU  71 . 
     The hopper  113  operates based on a control signal outputted from the main CPU  71  and pays out coins of the specified number of payouts from the coin payout exit to a coin tray not shown. The coin detection part  113 S outputs a signal to the main CPU  71  upon detection of coins paid out by the hopper  113 . 
     The touch panel  69  detects a position on the lower image display panel  141  touched by a player&#39;s finger or the like and outputs to the main CPU  71  a signal corresponding to the detected position. 
     The bill entry  22  identifies whether or not bills are legitimate and accepts legitimate bills into the cabinet  11 . An amount of the bills inputted in the cabinet  11  is converted to a number of coins and a credit which is equivalent to the converted number of coins is added as a credit which a player has. 
     The graphic board  130  controls display of images conducted by the respective lower image display panel  141 , middle image display panel  142 , and upper image display panel  143  based on a control signal outputted from the main CPU  71 . The graphic board  130  is provided with a VDP (Video Display Processor) generating image data, a video RAM temporarily storing the image data generated by the VDP, and the like. It is to be noted that the image data used in generation of image data by the VDP is included in the game program that has been read from the memory card  54  and stored into the RAM  73 . 
     The key switch  173 S is provided in a keypad  173  and outputs a predetermined signal to the main CPU  71  when the keypad  173  has been operated by a player. The data display  174  displays data read by a card reader  172  and data inputted by a player via the keypad  173 , based on a control signal outputted from the main CPU  71 . 
     (Symbols, Combinations, and Others) 
     Symbols  501  to be displayed on pseudo reels  151  to  155  of the above-described slot machine  10  form symbol arrays  170  in which base game symbols  502 , special symbols  503 , TRIGGER symbols  504 , and WILD symbols  505  are arrayed. Specifically, on the pseudo reels  151  to  155 , symbol arrays  170 A,  170 B,  170 C,  170 D, and  170 E shown in any of  FIG. 8  to  FIG. 17  are displayed in a scrolling manner. Since all of probabilities with which the respective symbols  501  are rearranged are the same as one another, rearrangement probabilities are set based on numbers of kinds of symbols in the symbol arrays  170 . 
     The rearrangement probabilities for the symbols  501  are not limited thereto, and a rearrangement probability for each of the symbols may be set. For example, upon determining symbols  501  to be rearranged, which are used in a base game, a symbol drawing table may be used. The symbol drawing table makes each of the respective symbols  501  in display blocks  28  in each of the respective symbol arrays and each code No. correspond to each other and makes each value range of numerical values and makes a range of random numbers for selecting symbols to be arranged from the respective symbol arrays as a range of numerical values corresponding to the numbers of symbols of the respective symbol arrays and each code No. correspond to each other. A way of setting the range may be even or uneven. For example, when the way is setting the range is uneven, each probability with which winning occurs depending on a range of random number values can be adjusted by a kind of the symbols  501 . A plurality of symbol drawing tables may be used in accordance with game states. For example, symbol drawing tables for the base game and free games, which are different from each other, may be used. 
     As the base game symbols  502 , there are six kinds of symbols: “9”, “10”, “JACK”, “QUEEN”, “KING”, and “ACE”. In addition, as the special symbols  503 , as described above, there are BAT symbols  503   e , GOURD symbols  503   d , FISH symbols  503   c , POT symbols  503   b , and DRAGON symbols  503   a . In addition, as the WILD symbols  505 , there are two kinds of symbols: normal WILD symbols  505   a  and 2×WILD symbols  505   b . Each of the WILD symbols  505  is a symbol which triggers the execution of a drawing for a bonus game and is replaced with each of the base game symbols  502 , special symbols  503 , and TRIGGER symbols  504 . It is to be noted that when the 2× WILD symbol  505   b  is rearranged, a payout and a drawing probability of the bonus game are doubled. In addition, the normal WILD symbols  505   a  are present only in a symbol array  170   b  and a symbol array  170   d  on the pseudo reels  152  and the pseudo reels  154 . In addition, the 2× WILD symbol  505   b  is present only in a symbol array  170   c  on the pseudo reel  153 . In addition, each of the TRIGGER symbols  504  is a symbol which triggers the execution of the free games. 
     Three successive symbols  501  in the symbol arrays, as shown in  FIG. 28 , are displayed (arranged) in an upper row, a middle row, and a lower row in display areas of each of the pseudo reels  151  to  155 , thereby configuring a symbol matrix of 5 columns×3 rows in a symbol display area  150 . At least when a SPIN button  46  is pressed and a game is started, scrolling of the symbols  501  configuring the symbol matrix is started. When a predetermined time period has passed from the start of scrolling, scrolling of the respective symbols  501  is stopped (the respective symbols are rearranged). 
     In addition, with respect to the respective symbols  501 , a variety of winning combinations are previously set. It is to be noted that each of the winning combinations means the establishment of winning Each of the winning combinations is a combination of symbols  501  stopped on an activated line, which is advantageous for a player. The advantageous state is a state in which coins corresponding to a winning combination are paid out, a state in which a number of coins to be paid out is added to a credit, a state in which a bonus game is started, and the like. 
     As the winning combinations in the present embodiment, there are winning combinations, each of which generates a scatter win, and winning combinations, each of which generates a line win. Specifically, the scatter win is generated by the TRIGGER symbol(s)  504  which triggers the execution of the free game and triggers of the execution of a drawing of the bonus game. When the TRIGGER symbol(s)  504  is/are rearranged in the symbol display area  150 , a payout associated with a number of the rearranged TRIGGER symbol(s) is awarded. 
     In addition, the line win is generated by the base game symbols  502 , the special symbols  503 , and WILD symbols  505 . In the present embodiment, paylines are not limited, all of patterns ( 243  patterns) which are present over the pseudo reel  151  to pseudo reel  155  are paylines. In other words, when on the respective pseudo reels  151  to  155  in the symbol display area  150 , symbols  501  whose kind is the same are rearranged in any of the upper row, the middle row, and the lower row, the line win is established. In an example shown in  FIG. 28 , since the BAT symbols  503   e  are rearranged on the pseudo reels  152  to  154 , 3 of a Kind of the BAT symbols  503   e  is established. It is to be noted that paylines for establishing line wins may be set. 
     It is to be noted that a drawing for the symbols  501  to be rearranged in the base game is conducted when the SPIN button  46  is pressed down. In addition, a drawing for the symbols  501  to be rearranged in each of the free games is conducted immediately before displaying the respective pseudo reels  151  to  155  in a varying manner is started. In addition, a drawing to determine whether or not the bonus game is executed is conducted when WILD symbol(s)  505  is(are) rearranged in the symbol display area  150 . In addition, a drawing to determine a bonus in the bonus game is conducted when the WILD symbol(s)  505  is(are) rearranged in the symbol display area  150  and a screen with a presentation image is thereby switched to a bonus game screen. 
     (Display Screen: Payout Table) 
     As shown in  FIG. 2 , on a middle image display panel  142 , payout tables in the respective wins shown in  FIG. 7  are displayed. Specifically, on the middle image display panel  142 , a first payout table  1431  is displayed in the left end portion thereof, a second payout table  1432  is displayed in the right end portion thereof, and jackpot amounts  1433  (payout amounts) and jackpot names  1434  (bonus ranks) are displayed in the central portion thereof. In the first payout table  1431  and the second payout table  1432 , credit numbers, each of which can be obtained by each of the variety of winning combinations, are displayed, with a payout multiplier for each of the displayed credit numbers being one time. In the first payout table  1431 , payouts to be obtained by the DRAGON symbols  503   a  and the POT symbols  503   b  are displayed. With respect to the winning combinations of the DRAGON symbols  503   a , a payout is a 58-credit in a case of 3 of a Kind; a payout is a 188-credit in a case of 4 of a Kind; and a payout is a 688-credit in a case of 5 of a Kind. In addition, with respect to the winning combinations of the POT symbols  503   b , a payout is a 25-credit in a case of 3 of a Kind; a payout is a 60-credit in a case of 4 of a Kind; and a payout is a 300-credit in a case of 5 of a Kind. 
     In addition, in the first payout table  1431 , explanations regarding the WILD symbols  505  are displayed. Specifically, displayed in the first payout table  1431  are the explanations regarding the 2× WILD symbol  505   b  that the 2× WILD symbol  505   b  substitutes for all symbols except the WILD symbols  505 ; that when the 2× WILD symbol  505   b  is included in a winning combination, a payout is doubled; and that the 2× WILD symbol  505   b  appears only on a third reel (pseudo reel  153 ). In addition, displayed in the first payout table  1431  are the explanations regarding the normal WILD symbols  505   a  that each of the normal WILD symbols  505   a  substitutes for all symbols except the WILD symbols  505 ; and that the normal WILD symbols  505   a  appear only on a second reel and on a fourth reel (pseudo reels  152  and  154 ). 
     In the second payout table  1432 , payouts of the TRIGGER symbols  504 , the FISH symbols  503   c , the GOURD symbols  503   d , and the BAT symbols  503   e  are displayed. As the payouts of the scatter-type TRIGGER symbols  504 , a payout is a 3-credit in a case of 3 of a Kind; a payout is a 8-credit in a case of 4 of a Kind; and a payout is a 58-credit in a case of 5 of a Kind. As the payouts of the winning combinations of the FISH symbols  503   c , a payout is a 20-credit in a case of 3 of a Kind; a payout is a 45-credit in a case of 4 of a Kind; and a payout is a 125-credit in a case of 5 of a Kind. As the payouts of the winning combinations of the GOURD symbols  503   d , a payout is a 15-credit in a case of 3 of a Kind; a payout is a 30-credit in a case of 4 of a Kind; and a payout is a 100-credit in a case of 5 of a Kind. As the payouts of the winning combinations of the BAT symbols  503   e , a payout is a 10-credit in a case of 3 of a Kind; a payout is a 15-credit in a case of 4 of a Kind; and a payout is a 60-credit in a case of 5 of a Kind. 
     As the jackpot amounts  1433 , payout amounts of four kinds of bonuses are displayed, and the jackpot names  1434  indicating names of the bonuses (GRAND, MAJOR, MINOR, and MINI) are given thereto. The pieces of information to be displayed as the jackpot amounts  1433  are changed in accordance with the states. It is to be noted that on the lower image display panel  141  and the middle image display panel  142 , number fonts whose widths are different from one another are used properly in accordance respective numbers of digits displayed as respective numerical values. 
     (Free Games) 
     Next, free games will be described. An initial number of free games is 10. As shown in  FIG. 29 , when TRIGGER symbols  504  whose number is a predetermined number (for example, three TRIGGER symbols  504 ) or more are rearranged, the free games are executed. In the free games, symbol arrays  170  (refer to  FIG. 13  to  FIG. 17 ) which are different from those used in the base game are used. In each of the free games, when the TRIGGER symbols  504  whose number is a predetermined number (for example, three TRIGGER symbols  504 ) are rearranged, a retrigger with which 10 is added to a number of the remaining free games occurs. In the present embodiment, although a number of times at which the retrigger occurs is not limited, the present invention is not limited thereto. 
     The TRIGGER symbols  504  whose number is the predetermined number or more are rearranged and “10 FREE GAMES” is displayed on a lower image display panel  141 . After darkening, on pseudo reels  151  to  155 , changing to symbol arrays  170  for the free games, which correspond to a bet number placed in the immediately previous base game, is conducted. In addition, as shown in  FIG. 30 , in a right lower portion of the lower image display panel  141 , a free game counter  183  is displayed. In the free game counter  183 , the total number of free games and a number of the counted free games are displayed. For example, in a case where “2 OF 10” is displayed in the free game counter  183 , it is indicated that 10 free games are set to be executable and at present, two free games have been counted. In other words, a player is notified that each one of the free games proceeds. It is to be noted that a count value before starting each of the free games is “0”, and upon starting of displaying pseudo reels  151  to  155  in a varying manner, one is concurrently added to the count value, and image presentation, in which the count value is displayed in an expanded manner, is conducted concurrently with audio presentation. In addition, the free game counter  183  displays that a game is being played with bonus reels and a current game is a free game. Displaying the symbol arrays  170  in the varying manner in the symbol display area  150  is automatically started. When a win has occurred in each of the free games, the later-described win screen is displayed. 
     When the remaining number of free games have been consumed and the free games have been finished, the total credit obtained is displayed on the lower image display panel  141  and thereafter, the game returns to a base game. In addition, during each of the free games, when the TRIGGER symbols  504  whose number is the predetermined number or more are rearranged, as mentioned above, the presentation is conducted by audio of “ringing” sound and thereafter, 10 is added to a value in the free game counter  183 . For example, the display in the free game counter  183  is changed from “3 of 10” to “3 of 20”. In addition, the later-described win presentation is conducted through the establishment of the scatter by the TRIGGER symbols  504 . 
     In addition, when no win has occurred in one free game, two seconds of a standby time is provided from when the rearrangement on the pseudo reels  151  to  155  is completed to when displaying in the varying manner in the next free game is started. It is to be noted that the standby time may be skipped by a SPIN button  46  or the like. It is to be noted that in the present embodiment, a reel spin by the SPIN button  46  or the like is made impossible. 
     For each of the free games, a selection game for increasing the special symbols  503  may be conducted. As shown in  FIG. 31 , upon starting each of the free games, on the lower image display panel  141 , a selection game screen is first displayed. On the selection game screen, five choice images  184  are arranged in a lower portion of the lower image display panel  141 . In addition, in the central portion of the lower image display panel  141 , a message  185  for prompting a player to select one of the choice images  184  is displayed. In a case where a control panel  30  is used to select one of the choice images  184 , an image display in which the selected choice image  184  is changed to a selection symbol image  187  is conducted. The selection symbol image  187  is any of five kinds of the special symbols  503 . In addition, an image display in which the four choice images  184  not selected are changed to non-selection selection symbol images  186  is conducted. The four non-selection selection symbol images  186  are four kinds of images except the selection symbol image  187 , among the five kinds of the special symbols  503 . 
     Only the special symbols  503 , each of which is indicated by the selection symbol image  187  selected on the selection game screen as described above, are displayed on the symbol arrays  170  in each of the free games. In other words, in the symbol arrays  170  in each of the free games, the special symbols  503  whose kind is selected by the selection game, base game symbols  502 , TRIGGER symbols  504 , and WILD symbols  505  are displayed. Accordingly, the four kinds of the special symbols  503  not selected by the selection game are not displayed in each of the free games. In addition, the numbers of the special symbols  503  whose kind is selected by the selection game and which are displayed in each of the free games and arranged in the symbol arrays  170  vary, depending on an amount of a symbol bet placed in the base game in which the free games are triggered. In other words, a percentage at which special symbols are arranged in the symbol arrays is increased in accordance with an increase in the amount of the symbol bet. 
     One example of the symbol arrays in each of the free games in the case where the above-described selection game is conducted is shown in  FIG. 58  to  FIG. 61 . In  FIG. 58  and  FIG. 59 , one example of a case where a special symbol “PHOENIX” is selected in the selection game is shown. In  FIG. 58 , symbol arrays in a case where a symbol bet in the base game in which the free games are triggered is one are shown. In  FIG. 59 , symbol arrays in a case where a symbol bet in the base game in which the free games are triggered is 60 are shown. In  FIG. 60  and  FIG. 61 , one example of a case where a special symbol “SWALLOW” is selected in the selection game is shown. In  FIG. 60 , symbol arrays in a case where a symbol bet in the base game in which the free games are triggered is one are shown. In  FIG. 61 , symbol arrays in a case where a symbol bet in the base game in which the free games are triggered is 60 are shown. 
     As shown in  FIG. 58  to  FIG. 59 , only the symbols “PHOENIX” selected in the selection game are displayed as the special symbols  503 . In addition, in accordance with the increase in the amount of the symbol bet, the number of specific symbols “PHOENIX” included in the symbol arrays is increased. In addition, a number of symbols included in the symbol arrays is decreased, and further, the percentage at which the specific symbols “PHOENIX” are included therein is increased. In addition, as shown in  FIG. 60  to  FIG. 61 , only the symbols “SWALLOW” selected in the selection game are displayed as the special symbols  503 . In addition, in accordance with the increase in the amount of the symbol bet, the number of specific symbols “SWALLOW” included in the symbol arrays is increased. In addition, a number of symbols included in the symbol arrays is decreased, and further, the percentage at which the specific symbols “SWALLOW” are included therein is increased. As described above, only the special symbols selected in the selection game are displayed in the symbol arrays in each of the free games. Further, in accordance with the increase in the symbol bet in the base game in which the free games are triggered, the percentage at which the special symbols are included therein is increased. Accordingly, with respect to the five kinds of specific symbols, symbol arrays (the total of 25 kinds) related to five kinds of symbol bets are previously prepared. 
     (Bonus Game) 
     In a base game and each free game, when a WILD symbol  505  or WILD symbols is or are rearranged on any of pseudo reels  151  to  155 , a drawing (first drawing) to determine whether or not a bonus game is executed is conducted. When during each of the free games, the bonus game is executed, each of the free games is interrupted and the bonus game as shown in  FIG. 6  is started. In addition, a drawing (second drawing) for a mystery bonus in each base game is conducted, and when winning in this drawing has occurred, the bonus game is executed. In other words, in the base game, when winning has occurred in both of the first drawing and the second drawing, the bonus game is execute twice. The first drawing and the second drawing will be described later. 
     As shown in  FIG. 6 , in the bonus game, 14 choice images  1421  are made selectable. As the choice images  1421 , two double bonus rank images  1422   e  are included. When the double bonus rank images  1422   e  are displayed, below the double bonus rank images  1422   e , a message “Lucky! Two counts obtained!” is displayed and a corresponding count in any corresponding area of rank count areas  1423  is increased by two. 
     When the execution of the bonus game is established, a drawing to determine whether a presentation method in a first mode (scenario mode) or a presentation method in a second mode (random mode) is employed is executed. In the present embodiment, although the determination for either is made with a weight of one and a probability of 1/2, the present invention is not limited thereto, and the weight may be provided with bias. In the scenario mode, there are previously determined patterns, in each of which the bonus rank images  1422  are displayed, until a plurality of selections are made. Up to the middle of the selections, in accordance with each of these patterns, the bonus rank images  1422  are displayed. Thereafter, based on a previously determined bonus, bonus rank images  1422  to be displayed and a displaying order are determined. In the random mode, based on a previously determined bonus, bonus rank images  1422  to be displayed and a displaying order are determined. Only four bonus rank images  1422  corresponding to the previously determined bonus are displayed, and further, these bonus rank images  1422  are finally displayed. Thus, a presentation display in which a count of the bonus rank images of the previously determined bonus reaches four can be conducted. In the second mode, the selection of the choice images  1421  can be executed at three times as a minimum up to 10 times as a maximum. 
     Specifically, the scenario mode will be described. As shown in a scenario table in  FIG. 33 , in the scenario mode, one of scenarios, in each of which the bonus rank images  1422  in the first to the fourth selections to be displayed by selecting the choice images  1421  are previously determined, is selected. There are 24 kinds of scenarios, and a weight for each of the scenarios is set to one. However, weights for the scenarios may be set so as to be different from one another. In all of the scenarios, only the bonus rank images  1422  which are higher in bonus ranks are set. Accordingly, in the scenario mode, in the first to the fourth sections, the bonus rank images  1422  which are higher in the bonus ranks are invariably displayed. In one bonus game, one of the scenario is determined by a drawing. For example, in the bonus game, in a case where a scenario  1  is determined, as shown in  FIG. 34 , even when a player selects any of the choice images  1421 , the double bonus rank image  1422   e  of the GRAND rank is displayed in the first selection. In a count image  1423   a  of a GRAND rank in any corresponding area of the rank count areas  1423 , two is counted. As shown in  FIG. 35 , even when a player selects any of the choice images  1421 , a GRAND rank image  1422   a  is displayed in the second selection. In the count image  1423   a  of the GRAND rank in the rank count area  1423 , the count is increased further by one and the total of three is counted. 
     As shown in  FIG. 36 , a double bonus rank image  1422   f  of a MAJOR rank is displayed in the third selection and in a count image of the MAJOR rank in the rank count area  1423 , two is counted. A MAJOR rank image  1422   b  is displayed in the fourth selection, and in the count image of the MAJOR rank in the rank count area  1423 , and the count is increased further by one and the total of three is counted. In the fifth and subsequent selections, bonus rank images  1422  randomly determined by drawings are displayed. Since bonuses to be won are previously determined, the bonus rank images  1422  displayed in the fifth and subsequent selections are determined such that the number of the bonus rank images  1422  corresponding to bonuses other than the won bonuses does not reach four. In accordance with the operation onto the control panel  30  by a player, the determined bonus rank images  1422  in the fifth and subsequent selection are displayed. 
     When any of the counts in the rank count areas  1423  has reached four, as shown in  FIG. 37 , a frame image  1423   b  which encloses the rank count area  1423  corresponding to the determined bonus is displayed. Thus, a kind of the won bonus can be displayed in an easily recognizable manner. As shown in  FIG. 38 , on the lower image display panel  141 , a result display screen is displayed. In the result display screen, a bonus result  1450  in which a kind of the established bonus and the obtained credit are shown is displayed. Thereafter, the game returns to a state in which the bonus game is triggered. 
     (Re: Drawing Related to Bonus Game) 
     The drawing related to the bonus game will be described below. As described above, in the bonus game, one bonus is determined from among the four kinds of bonuses (the GRAND bonus, the MAJOR bonus, the MINOR bonus, and the MINI bonus). An initial value of the GRAND bonus is a 500,000-credit; an initial value of the MAJOR bonus is a 40,000-credit; an initial value of the MINOR bonus is a 4,000-credit; and an initial value of the MINI bonus is a 2,000-credit. A value obtained by multiplying each of these initial values by a value of a set denomination is a bonus value. In addition, default increment percentages of the bonuses are as follows: the default increment percentage of the GRAND bonus is 0.1%; the default increment percentage of the MAJOR bonus is 0.1%; the default increment percentage of the MINOR bonus is 0.5%; and the default increment percentage of the MINI bonus is 1%. 
     First, a drawing (also referral to as a first drawing or a progressive challenge) to determine whether or not a bonus game is executed in a case where in the base game and each of the free games, a WILD symbol or WILD symbols  505  is or are rearranged will be described. A winning probability of the bonus game in the progressive challenge is increased in accordance with a kind of a symbol bet and a number of the rearranged WILD symbols  505 . Specifically, as shown in  FIG. 39 , in a progressive challenge table, a numerical value is previously associated with each kind of the symbol bet for each game variation, respectively. This progressive challenge table is prepared for each setting combination. In order to increase a precision, a value obtained by multiplying this numerical value by 1,000,000 is used as a denominator of the winning probability. In addition, in the base game or each of the free games in which the progressive challenge has been triggered, a value obtained by multiplying a number of the rearranged normal WILD symbols by 1,000,000 is used as a numerator of the winning probability. The 2× WILD symbol  505   b  is counted as two. 
     When the execution of the bonus game is determined by the progressive challenge drawing, a drawing (also referral to as a progressive drawing) to determine which one of the four kinds of bonuses is awarded is conducted. Specifically, as shown in  FIG. 40 , in a progressive drawing table, weights of the respective bonuses are previously determined. In other words, a numerical value whose denominator is the total of the weights and whose numerator is the weight of each of the respective bonuses is the winning probability of each of the respective bonuses. In case of the occurrence of abnormality, a value of the MINOR bonus is set to be a default. 
     (Processing Operation of Slot Machine  10 : Base Game Execution Process) 
     The operation of a slot machine  10  having the above-described configuration will be described. A base game execution process in  FIG. 41  is executed by a main CPU  71  of the slot machine  10 . It is to be noted that the slot machine  10  is previously booted. 
     First, the main CPU  71  executes a credit request process (S 10 ). In this process, a player determines whether or not some credit is used from a credit stored in an IC card. 
     It is determined whether or not coins are bet (S 11 ). In this process, the main CPU  71  determines whether or not an input signal outputted from a 1-BET switch  34 S when a 1-BET button  34  is operated or an input signal outputted from a 5-BET switch  39 S when a 5-BET button  38  is operated has been received. When it is determined that no coins have been bet, the main CPU  71  returns the processing to S 10 . 
     On the other hand, when it is determined at S 11  that the coins have been bet, the main CPU  71  conducts a process of the subtraction of a credit number stored in a RAM  73  in accordance with a number of the bet coins (S 12 ). When the number of the bet coins is larger than the credit number store in the RAM  73 , the main CPU  71  returns the processing to S 11  without conducting the process of the subtraction of the credit number stored in the RAM  73 . In addition, when the number of the bet coins exceeds an upper limit (5 BETs×88 CREDITs=440 coins in the present embodiment) which can be bet for one play, the main CPU  71  causes the processing to proceed to S 13  without conducting the process of the subtraction of the credit number stored in the RAM  73 . 
     Next, the main CPU  71  determines whether or not a SPIN button  46  has been turned ON (S 13 ). In this process, the main CPU  71  determines whether or not an input signal outputted from a spin switch  46 S when the SPIN button  46  has been pressed has been received. When it is determined that the SPIN button  46  has not been turned ON, the main CPU  71  returns the processing to S 11 . When the SPIN button  46  has not been turned ON (for example, when an instruction that the SPIN button  46  is not turned ON and a play is finished is inputted), the main CPU  71  cancels a result of the subtraction at S 12 . 
     On the other hand, when it is determined at S 13  that the SPIN button  46  has been turned ON, the main CPU  71  executes a base game symbol determination process (S 14 ). In the base game symbol determination process, a code No. of symbols upon stopping of the symbols is determined Specifically, based on an acquired random number value, the code No. of the symbols in display blocks  28  of respective symbol arrays upon stopping of the symbols is determined. 
     Next, the main CPU  71  conducts a scroll display control process (S 15 ). In this process, the display is controlled such that after starting scrolling of symbols  501 , the symbols  501  determined at S 15  are rearranged. 
     Next, the main CPU  71  determines whether or not winning has been established by the rearranged symbols determined at S 14  (S 16 ). 
     When it is determined at S 16  that the winning has been established, the main CPU  71  conducts a process related to paying-out of coins (S 17 ). In this process, with reference to odds data stored in the RAM  73 , the main CPU  71  determines a payout multiplier based on a number of the symbols  501  rearranged on an activated line. The odds data is data indicating a correspondence relationship between each number of symbols  501  rearranged on the activated line and each payout multiplier. When a 2× WILD symbol  505   b  has been rearranged and a win related to the 2× WILD symbol  505   b  has been established, a payout is doubled. 
     When it is determined at S 16  that no winning has been established or after the process at S 17  has been executed, the main CPU  71  determines whether or not free games have been triggered (S 18 ). When the free games have been triggered, each of the free games is started (S 19 ). When the free game has not been triggered or after the free games have been executed, the main CPU  71  determines whether or not a WILD symbol or WILD symbols has/have been rearranged (S 20 ). When the WILD symbol or WILD symbols has/have been rearranged, a bonus game drawing is conducted in accordance with a number of the WILD symbol or WILD symbols, and the main CPU  71  determines whether or not winning of a bonus game has occurred (S 21 ). Thereafter, when the winning of the bonus game has occurred, the bonus game is executed (S 22 ). When the WILD symbol or WILD symbols has/have not been rearranged or after the bonus game triggered by the rearrangement of the WILD symbol or WILD symbols has been executed, this routine is finished. 
     As described above, whether or not the bonus game is triggered is determined by the progressive challenge executed by the rearrangement of the WILD symbol or WILD symbols. Accordingly, in order to modify a probability of the progressive challenge, which depends on symbol arrays, it is required to modify the symbol arrays. 
     (Processing Operation of Slot Machine  10 : Free Game Execution Process) 
     As shown in  FIG. 42 , in a free game execution process, first, 10 free games are set. In other words, a predetermined number of games=10 is set (S 31 ). In association with said setting, switching to free game reel strips is conducted (S 32 ). In other words, a kind of a symbol bet in a base game in which the free games have been triggered is determined, and free game symbol arrays in accordance with the kind of a symbol bet are selected. 
     Thereafter, it is determined whether or not a SPIN button  46  has been turned ON by a pressing operation (S 34 ). When the SPIN button  46  has not been pressed (S 34 : NO), S 34  is executed again. On the other hands, when the SPIN button  46  has been pressed (S 34 : YES), a free game symbol determination process is executed (S 35 ) and thereafter, a scroll display control process is executed (S 36 ). Thereafter, it is determined whether or not winning has been established (S 37 ). When the winning has been established (S 37 : YES), a paying-out process is executed (S 38 ) and thereafter, S 39  is executed. On the other hand, when no winning has been established (S 37 : NO), S 38  is executed. 
     It is determined whether or not a retrigger condition (free game addition condition) has been established (S 39 ). When no retrigger condition has been established (S 39 : NO), one is subtracted from the predetermined number of games (S 41 ). On the other hand, when the retrigger condition has been established (S 39 : YES), 10 free games are added (S 40 ). 
     When the free games have not been triggered or after the addition of 10 games, it is determined whether or not a WILD symbol or WILD symbols has or have been rearranged (S 41 ). When the WILD symbol or WILD symbols has or have been rearranged (S 41 : YES), in accordance with a number of the WILD symbol or WILD symbols, a bonus game drawing is conducted, and it is determined whether or not winning of a bonus game has occurred (S 42 ). Thereafter, when the winning of the bonus game has occurred, the bonus game is executed (S 43 ). When it is determined at step S 41  that the WILD symbol or WILD symbols has or have not been rearranged (S 43 : NO) or after the bonus game execution process at step S 43 , one is subtracted from the predetermined number of games (S 44 ). 
     Next, it is determined whether or not the predetermined number of games is 0 (S 45 ). When the predetermined number of games is not 0 (S 45 : NO), it is determined that the free games are under way, and each of the free games is executed again from S 34 . On the other hand, when the predetermined number of games is 0 (S 45 : YES), it is determined that the feature game is finished, and this routine is finished. 
     (Processing Operation of Slot Machine  10 : Bonus Game Execution Process) 
     As shown in  FIG. 43 , in a bonus game execution process, first, a bonus drawing is executed (S 61 ), thereby determining a kind of a bonus to be awarded. Thereafter, a mode drawing is executed (S 62 ). In the mode drawing, it is determined whether the mode is a scenario mode or a random mode. Next, it is determined whether or not the mode determined at step S 62  is the scenario mode (S 63 ). When the mode is the scenario mode (S 63 : YES), a scenario drawing to select one of scenarios is executed (S 64 ). Bonus rank images to be displayed in scenarios subsequent to the determined scenario are determined (S 65 ). On the other hand, when the mode is not the scenario mode (S 63 : NO), bonus rank images  1422  corresponding to respective selections (the first to 14th selections) are determined by drawings (S 66 ). At step S 65  and S 66 , 14 bonus rank images  1422  (two GRAND rank images  1422   a , two MAJOR rank images  1422   b , four MINOR rank images  1422   c , four MINI rank images  1422   d , one double bonus rank image  1422   e  of a GRAND rank, and one double bonus rank image  1422   f  of a MAJOR rank) are associated with all of the first to 14th selections. At step S 65 , bonus rank images  1422  to be displayed in the fifth and subsequent selections except the bonus rank images  1422  in the first to fourth selections, which have already been determined by the scenario, are determined. The 14 bonus rank images  1422  are associated with the selections such that four bonus rank images of the bonus rank determined at step S 61  are counted prior to counting of the other bonus ranks. Accordingly, the selections are actually made by a player at up to 10 times. 
     At step S 65  or after step S 66 , the 14 choice images  1421  are displayed, and a screen is in a standby state for a selection input by a player (S 67 ). It is determined whether or not a selection input of any of the choice images  1421  has been accepted by a control panel  30  (S 68 ). When no input has been accepted, step S 68  is executed again. When the input has been accepted, an image display, in which the selected choice image  1421  is modified to the bonus rank image  1422  determined at step S 65  or step S 66 , is conducted (S 69 ). A count image  1423   a  corresponding to this bonus rank image  1422  is displayed in any corresponding area of the rank count areas  1423  (S 70 ). When the bonus rank image  1422  is the double bonus rank image  1422   e , two count images  1423   a  are displayed. Thereafter, it is determined whether or not four count images  1423   a  of any bonus rank are displayed (S 71 ). When the number of the count images of any of bonus ranks has not reached four, step S 68  is executed again. 
     When all of the bonus rank images  1422  are displayed, a bonus game result display process is executed (S 72 ). Specifically, a frame image  1423   b  is displayed for the rank count area  1423  corresponding to the won bonus, and a bonus result  1450  is displayed. Thereafter, this routine is finished. 
     (Display Screen: Base Game Screen) 
     As shown in  FIG. 28 , below a symbol display area  150 , a CREDIT meter  400 , a BET meter  401 , and a WIN meter  402  are arranged. The CREDIT meter  400  and the BET meter  401  are arranged in the central portion, viewed from a player. On the other hand, the WIN meter  402  is arranged in the right end portion, viewed from a player. 
     The CREDIT meter  400  displays the total credit number (remaining credit number). An initial value is 0. As for an increase and a decrease in the numerical value, a WIN credit obtained by “TAKE WIN”, that is, winning in a game, is added. During playing the game, a bet number is subtracted therefrom. Upon finishing “COLLECT”, a bet number is subtracted therefrom. 
     The BET meter  401  displays a “total bet”. When betting is made for each activated line, a number of bets×a number of the lines is the total bet. For each game play, a numerical value is recalculated. 
     The WIN meter  402  displays the total credits of obtained wins in an incremented manner. An initial value is 0. The display of the WIN meter  402  in a system font display position is as follows. 
     For example, when no 2× WILD symbol  505   b  or the like has appeared and a win of 3 of a Kind has singly occurred, a display in the WIN meter  402  is indicated as described below. For example, when on pseudo reels  151  to  153 , GOURD symbols  503   d  are rearranged one by one, “3 PICKED_D=15” is displayed as the detail, “TOTAL WIN=15” is displayed as the total amount, and a value obtained by multiplying this total amount by a denomination is displayed. 
     In addition, when the 2× WILD symbol  505   b  has appeared and a win of 3 of a Kind has singly occurred, a display in the WIN meter  402  is indicated as described below. For example, when on the pseudo reels  151  to  152 , the GOURD symbols  503   d  are rearranged one by one and on the pseudo reel  153 , the 2× WILD symbols  505   b  is rearranged, “3 PICKED_D×2 WILD=30” is displayed as the detail, “TOTAL WIN=30” is displayed as the total amount, and a value obtained by multiplying this total amount by a denomination is displayed. 
     In addition, when the 2× WILD symbols  505   b  has appeared, a win of 3 of a Kind including the 2× WILD symbols  505   b  has occurred, and a win of 3 of a Kind has singly occurred, a display in the WIN meter  402  is indicated as described below. For example, when on the pseudo reels  151  to  153 , FISH symbols  503   c  are rearranged one by one and on the pseudo reel  153 , the 2× WILD symbols  505   b  is rearranged, “3 PICKED_C=20” and “3 PICKED_C×2 WILD=40” are alternately and repeatedly displayed, “TOTAL WIN=60” is displayed as the total amount, and a value obtained by multiplying this total amount by a denomination is displayed as the detail. 
     In addition, when the 2× WILD symbols  505   b  has appeared and a plurality of wins of 3 of a Kind have occurred, a display in the WIN meter  402  is indicated as described below. For example, when on the pseudo reel  151 , “10”, a POT symbol  503   b , and the FISH symbol  503   c  are rearranged one by one; on the pseudo reel  152 , the normal WILD symbol  505   a  and two FISH symbols  503   c  are rearranged; and on the pseudo reel  153 , the 2× WILD symbol  505   b  is rearranged, “3 PICKED_B×2 WILD=50”, “3 PICKED_C×3×2 WILD=120”, and “3 TEN×2 WILD=10” are alternately and repeatedly displayed as the detail, “TOTAL WIN=180” is displayed as the total amount, and a value obtained by multiplying this total amount by a denomination is displayed. 
     In addition, when the 2× WILD symbols  505   b  has appeared and a plurality of wins of 3 of a Kind have occurred, a display in the WIN meter  402  is indicated as described below. For example, when on the pseudo reel  151 , the POT symbol  503   b  and a BAT symbol  503   e  are rearranged one by one; on the pseudo reel  152 , one POT symbol  503   b  and two BAT symbols  503   e  are rearranged; on the pseudo reels  153 , one BAT symbol  503   e  and the 2× WILD symbol  505   b  are rearranged; and on the pseudo reel  154 , one POT symbol  503   b  is rearranged, “4 PICKED_B×2 WILD=120”, “3 PICKED_Ex2=20”, and “3 PICKED_Ex2 WILD=40” are alternately and repeatedly displayed as the detail, “TOTAL WIN=180” is displayed as the total amount, and a value obtained by multiplying this total amount by a denomination is displayed. 
     Further, below the symbol display area  150 , a denomination button  413 , a MENU button  414 , and an audio button  415  are arranged. These buttons  413 ,  414 , and  415  are located in the order from the left to the right, viewed from a player. In addition, above a GAME RULE button  416 , a TIME display  417  for indicating a current time is displayed. 
     The denomination button  413  displays a current denomination which is set with an AUDIT screen. The denomination button is displayed while a screen other than the audit screen is displayed. The audio button  415  is used when an audio volume outputted by a slot machine  10  is adjusted. As shown in  FIG. 28 , there are three stages of the audio volume, and each time the audio button  415  is touched, the audio volume is switched in the order (a minimum volume (30%)→a middle volume (70%)→a maximum volume (100%)→a minimum volume (30%)→ • • • ). It is to be noted that as a default, the audio volume is set to the minimum volume. In addition, after a game is started and when the AUDIT screen (setting screen) is set to a non-displayed state, the audio volume is reset to the default. While a HELP screen is displayed, since the audio button  415  is in the non-displayed state, the audio volume is set in a state in which the audio volume cannot be changed. However, the audio button  415  is active in other states than the above-mentioned state. An operation inactive time from when the audio button  415  is pressed is set to 0.15 second (150 msec). A default of a volume setting value on the AUDIT screen is “12”. It is to be noted that when there is not a volume adjusting touch panel, the default is set to “5”. A reproduction volume of a volume setting change sound on the AUDIT screen is set to the default (a volume reflecting the minimum volume (30%)) of the audio button  415 . The audio button  415  is touched, whereby payout tables in HELP pages are displayed. The GAME RULE button  416  is touched, whereby the first page of the HELP pages is displayed. It is to be noted that the GAME RULE button  416  is inactive while the reels are being rotated and is displayed in a grayed-out manner. 
     In addition, above the denomination button, a status display area  419  is arranged. In the status display area  419 , bet information and a game state of a game which is currently being executed are displayed. The bet information indicates a bet number placed. For example, when a bet number is one, “BET MUTIPLIER 1” is displayed, and when a bet number is two, “BET MUTIPLIER 2” is displayed. In addition, the game state is set to be in a non-displayed state, for example, during a game, and upon game-over, “GAME OVER” is displayed and in a GAMBLE wait state, “PLAY ON, GAMBLE or TAKE WIN” is displayed. 
     Specifically, in a bet information area of the status display area  419 , immediately after RAM clear, “BET MUTIPLIER n” (n is a minimum value in a set BET pattern) is displayed. After pressing a button “BETx XX”, “BET MUTIPLIER n” (a value of n for each bet button is modified) is displayed. For the others, the immediately previous display contents are maintained. 
     In addition, in the status display area  419 , immediately after the RAM clear, “GAME OVER” is displayed. In addition, upon pressing down the SPIN button  46 , while the reels are being rotated, the status display area  419  is set in the non-displayed state, and in the other state, “GAME OVER” is displayed therein. Immediately after stopping the reels, when GAMBLE is enabled by a win, “PLAY ON, GAMBLE or TAKE WIN” is displayed therein, and in the other state, “GAME OVER” is displayed therein. When a bonus game is triggered, the status display area  419  is set in the non-displayed state. Immediately after finishing the bonus game, when the GAMBLE is enabled by a win, “PLAY ON, GAMBLE or TAKE WIN” is displayed therein, and in the other state, “GAME OVER” is displayed therein. Immediately after finishing a jackpot, “GAME OVER” is displayed. When the HELP is pressed down and the HELP screen is thereby displayed, when the GAMBLE is enabled by a win, “PLAY ON, GAMBLE or TAKE WIN” is displayed therein, and in the other state, “GAME OVER” is displayed therein. When the HELP is pressed down and the screen is returned to a game screen, a state prior to displaying the HELP screen is displayed. After pressing the button “BETx XX” and upon “TAKE WIN”, “GAME OVER” is displayed. 
     In addition, in portions on both right and left sides of the symbol display area  150 , logos  418 , each of which indicates that paylines are not limited (EVERY WAY), are displayed. 
     (Display Screen: HELP Screen) 
     A HELP screen displayed when a MENU button  414  is touched will be described. As shown in  FIG. 44 , on the HELP screen, a HELP display part  421  is displayed in the central portion of a lower image display panel  141 . In addition, below the HELP display part  421 , an EXIT touch button  422  for causing the HELP screen to disappear and returning to a base game screen, a PREY touch button  423  for turning a current page of the HELP display part  421  to the previous page, a NEXT touch button  424  for turning a page of the HELP display part  421  to the next page, a denomination button  413  described above, and a TIME display  417  described above are displayed. 
     In the HELP display part  421  of the HELP screen, the below-described messages are displayed. 
     Displayed in the first page are messages: “●Select bet multiplier.”, which prompts a player to select a multiplier; “●Select number of credits to play to start the game.” which prompts a player to select a number of credits to start a game to play; “●All wins left to right in any position only.” which notifies a player that all wins are determined by symbols rearranged from left to right “●Each symbol appearing on a reel is counted once per winning combination.” which notifies a player that each symbol appearing on a reel is counted only once per winning combination; “●All wins shown in credits, except progressives.” which notifies a player that all wins are shown with credits except progressive bonuses; “●Highest win only on each way.” which notifies a player that a win by which the highest amount is likely to be obtained is targeted; “●All wins are multiplied by bet multiplier except scatters.” which notifies a player that each of all of wins except scatter wins is multiplied by a bet multiplier, “●Scatter wins are multiplied by the total credits bet” which notifies a player that each of the scatter wins is multiplied by a total credit bet; “●Wins on different ways are added.” which notifies a player that amounts of wins on ways which are different from one another are added; “●Scatter wins are added to EVERY WAY wins.” which notifies a player that amounts of the scatter wins are added to an amount of EVER WAY wins; “●Malfunction voids all pays and plays.” which notifies a player that malfunction voids all payouts and plays; and “●The player is responsible for checking that correct credit has been registered before commencing play.” which notifies a player that it is required for a player to check that a correct credit has been registered before a game is started. 
     Displayed in the second page are messages: “INCREASED SYMBOLS PER PLAY. Different reels are used according to the selected number of credits played as displayed below.” which notifies a player that reels whose kinds are different from one another are used and the selection of reels to be used is made according to a selected number of credits. “PLAY 60 CREDITS Reels have an increased number of [BAT], [GOURD], [FISH], [JAR], and [DRAGON]; PLAY 30 CREDITS Reels have an increased number of [BAT], [GOURD], [FISH], and [JAR]. PLAY 15 CREDITS Reels have an increased number of [BAT], [GOURD] and [FISH]. PLAY 5 CREDITS Reels have an increased number of [BAT] and [GOURD]. PLAY 1 CREDIT NORMAL REELS. The increase in the number of each symbol is respective to the number of each symbol on normal reels.” which notifies a player that with respect to numbers of the respective kinds of symbols on the normal reels, the numbers of the respective kinds of symbols are increased. 
     Displayed in the third page are messages: “●EVERY WAY provides for 243 ways to win.” which notifies a player that EVERY WAY provides 243 ways to win for a player; “●EVERY WAY wins are the winning combinations that appear left to right in any position.” “●Only one symbol from each reel comprises each winning combination.” which notifies a player that each one symbol rearranged on each of the reels constitutes each of the symbols of each of the winning combinations; “The increase in the number of each symbol is respective to the number of each symbol on normal reels.” which notifies a player that with respect to numbers of the respective kinds of symbols on the normal reels, the numbers of the respective kinds of symbols are increased. 
     Displayed in the fourth page are messages: “FREE GAMES ●3 or more [FEATURE], [WILD] or [×2WILD] appearing left to right trigger 10 FREE GAMES.” which notifies a player that when three or more symbols of [FEATURE], [WILD], or [×2WILD] have appeared, 10 free games are triggered; “●Different reels are used during the FREE GAMES.” which notifies a player that during each of the free games, different reels are used; “●FREE GAMES can be triggered again during the FREE GAMES.” which notifies a player that free games can be triggered again during the free games; and “●Credits bet and increased symbols played during the FREE GAMES are the same as the game that triggered the FREE GAMES.” which notifies a player that as a bet placed during each of the free game, the bet which has triggered the free game is applied. 
     In the fifth page, a payout table shown in a first payout table  1431  in  FIG. 2  is displayed. Further, displayed therein are messages: “PAYTABLE SUBSTITUTES ●[WILD] substitutes for all symbols except [×2WILD].” which notifies a player that a symbol [WILD] substitutes for each of all symbols except [×2WILD]; “●[WILD] appears on reels 2 and 4 only.” which notifies a player that the symbols [WILD] appear only on reels 2 and 4; “●[×2WILD] substitutes for all symbols.” which notifies a player that a symbol [×2WILD] substitutes for each of all of symbols; “●If [×2WILD] substitutes in a win the pay for that win is doubled.” which notifies a player that when any WIN with the symbol [×2WILD] involved has occurred, a payout is doubled; “●[×2WILD] appears on reel 3 only.” which notifies a player that the symbol [×2WILD] appears only on reel 3; “● ” written in combined form on [WILD] and [×2WILD] means “Bringing fortune and treasure.” which notifies a player that the Chinese characters “ ” written on [WILD] and [×2WILD] mean “bringing fortune and treasure”; and ●“SCATTER CREDIT”. 
     In the sixth page, a payout table shown in a second payout table  1432  in  FIG. 2  is displayed. Further, displayed therein are messages: “PROGRESSIVE FEATURE ●There is a chance the PROGRESSIVE FEATURE may be triggered when [WILD] or [×2WILD]appear.” which notifies a player that there is a chance that the progressive feature may be triggered when the symbol [WILD] or the symbol [×2WILD] appears; “●IN the PROGRESSIVE FEATURE, 4 types of dragons are hidden behind 12 coins.” which notifies a player that in the progressive feature, four types of DRAGONs are hidden behind 12 coins; “●Select a coin until 3 matching dragons corresponding to a PROGRESSIVE are revealed.” which prompts a player to select the coins one by one until three matching DRAGONs whose type is the same have been revealed; “●When 3 matching dragons have been revealed, the corresponding PROGRESSIVE is won and the feature ends.” which notifies a player that when the three same matching DRAGONs have been revealed, a PROGRESSIVE award corresponding thereto is won and the PROGRESSIVE FEATURE is finished; “●PROGRESSIVE award amounts for each bet condition are displayed on the top screen.” which notifies a player that each PROGRESSIVE award amount which is likely to be obtained by each bet is displayed on the 2nd screen; “●The chances of revealing each dragon are not equal.” which notifies a player that the chances of revealing the respective types of DRAGONs are not equal to one another; “●All wins cannot be gambled if the PROGRESSIVE is won, even if gamble game is available.” which notifies a player that any wins including a PROGRESSIVE win cannot be gambled even if GAMBLE is active; and “DRAGONS/PROGRESSIVE [RED DRAGON]/GRAND PROGRESSIVE [PURPLE DRAGON]/MAJOR PROGRESSIVE [GREEN DRAGON]/MINOR PROGRESSIVE [BLUE DRAGON]/MINI PROGRESSIVE”. 
     Displayed in the eighth page are messages: “●PLAY 0000 TO 0000 CREDITS” “●ALL WINS PAID BY MACHINE OR ATIENDANT”. 
     As described above, on the HELP screen, the payout tables indicating all of the winning combinations, the basic rules, the win lines, the feature games (the bonus game, the free game, and the like), the ranges of the bet numbers, and the like are described. In each of the payout tables, the payouts are described in descending order of the payouts. In addition, in the basic rules, ways of playing and basic plays of the GAMBLE game are described. For the win lines, it is described that the EVERY WAY in which the paylines are not limited. For the feature games, the plurality of feature games are described in the respectively different pages. When in each of the feature games, the payout tables are different from the payout table in the base game, after the description of the rules in each of the feature game, the payout tables are described. In addition, when there are game specific features such as High POWER and Max Bet Special, rules of the features are described. For the bet numbers, ranges of the bet numbers with which betting can be made in each of the games are described. 
     A process related to the HELP screen will be described. When the SERVICE button  45  is pressed down with the SERVICE button  45  (GAME RULE button  33 ) being active, the basic screen in an idle state is kept to be displayed on the middle image display panel  142 , and only on the lower image display panel  141 , the HELP screen is displayed. While any error is occurring or the AUDIT screen is being displayed, the LED of the SERVICE button  45  is lit off, and the SERVICE button  45  is made inactive. On the HELP screen, the below described process is conducted. When Error/Door Open has occurred, the HELP screen is made to be non-displayed (with the game screen being displayed), and “Error/Door Open” is displayed. When bills or coins are inputted, after the HELP screen has been made to be non-displayed, the credit is accepted. When an AUDIT screen key is turned, the HELP screen is made to be non-displayed, and the AUDIT screen is displayed. Thereafter, when the AUDIT screen is made to be non-displayed, the screen is made to be in the idle state. When after turning off the power, the power is turned on, the HELP screen is not displayed and the screen is made to be in the idle state. When with the HELP screen being displayed, any inputting is not conducted for three minutes, the HELP screen is made to be non-displayed. 
     (Display Screen: WIN Presentation Screen) 
     When in the base game and the free games, winning has occurred, the below-described presentation display is conducted. As shown in  FIG. 45 , when in a symbol display area  150  of a lower image display panel  141 , two line wins have occurred, the established winning combinations are indicated by line displays  431  and  432 . The line displays  431  and  432  are alternately displayed. At this time, on a middle image display panel  142 , as shown in  FIG. 46 , a win image  187  “WIN 7 CREDITS” is displayed. In the win image  187 , the obtained credit is displayed in an incremented manner (which is linked to a WIN meter  402  on the lower image display panel  141 ). A plurality of win images  187  may be used. For example, in respective cases where the obtained win total is less than 25 times of a bet number; where the obtained win total is 25 times or more and less than 50 times of the bet number; and where the obtained win total is 50 times or more of the bet number, the win images  187  which are respectively different from one another may be used. In addition, when the obtained win total is 20 times or more of the bet number, from when all pseudo reels  151  to  155  have stopped to when the above-describe win presentation screen is displayed, a standby state of 20 frames may be set. 
     In addition, there are 24 WIN ranks which are classified by amounts of obtained win credits. In accordance with the respective WIN ranks, increment speeds are properly used. In addition, WIN sounds in accordance with the increment speeds are used. Specifically, as shown in  FIG. 47 , the increment speeds are defined in accordance with the respective ranges of the WIN totals. In other words, for each of the WIN ranks 1 to 22, a result of dividing the obtained credit by a predetermined number of seconds is defined as a speed at which one increment is made. Thus, the incrementing is completed in the predetermined number of seconds. In addition, for each of the WIN ranks 23 to 24, up to when a credit to be incremented has reached 20 times of the bet number, the incrementing is conducted at a speed at which 1/2 of the bet number proceeds for one second. When the credit to be incremented has reached 20 times or more of the bet number, a result of dividing the remaining amount of the obtained credit by the remaining number of seconds is defined as a speed at which one increment is made. Thus, the incrementing is completed in the predetermined number of seconds. 
     In addition, when three or more TRIGGER symbols  504  have been rearranged, audio presentation is conducted. Specifically, after the elapse of 20 frames from when all the pseudo reels  151  to  155  have stopped, “ringing” sound is reproduced. Thereafter, the above-described WIN presentation screen is displayed. 
     (Details of Display Screen: WIN Meter  402 ) 
     As shown in  FIG. 48 , a WIN meter  402  is to display a WIN credit and a breakdown in an integrated meter when winning has occurred. The WIN meter  402  has a WIN gross amount display area  4021 , a breakdown display area  4022 , and a total display area  4023 . 
     (Details of Display Screen: WIN Meter  402 : WIN Gross Amount Display Area  4021 ) 
     In the WIN gross amount display area  4021 , a WIN credit and a money amount are displayed. The details of display specification will be described below. During idling, immediately after winning has occurred, “0” is displayed as a WIN gross amount, and also in the other states, “0” is displayed. Upon pressing down a SPIN button  46 , “0” is displayed. During WIN incrementing, an increment display is conducted. Upon bonus pick triggering, “0” is displayed (no winning occurs upon this triggering). 
     Upon introducing free games, an immediately previous WIN gross amount is displayed therein. During the rotation of reels in each of the free games, the immediately previous WIN gross amount is displayed therein. Immediately after stopping the reels in each of the free games, if it is immediately after winning has occurred, a WIN amount is added to the immediately previous WIN gross amount, and incrementing display is conducted. On the other hand, in the other states, the immediately previous WIN gross amount is displayed therein. Upon introducing a bonus game, the immediately previous WIN gross amount is displayed therein. Immediately after finishing the bonus game, a WIN amount of a bonus or a jackpot is added to the immediately previous WIN gross amount, and incrementing display is conducted. 
     As a display image, a credit display such as “12345678” is displayed in an upper row, and a money amount display such as “$123,456.78” is displayed in a lower row. 
     (Details of Display Screen: WIN Meter  402 : Breakdown Display Area  4022 ) 
     A breakdown display area  4022  is to display a WIN line No. and a WIN credit, when winning has occurred during a base game and each free game, after stopping the fifth reel. At this time, when a plurality of line payouts have been won, each of the plurality of line payouts is displayed by conducting switching with a switching time unit of 0.5 second. The line payouts are displayed in ascending order of win line Nos. After the largest win line No. has been displayed, the line payouts are displayed again in ascending order of the win line Nos. In the breakdown display area  4022 , in a case of winning of a bonus and a credit payout, a “bonus win” and a WIN credit are displayed. In addition, in the breakdown display area  4022 , in a case of winning upon winning a jackpot in a bonus game, a “jackpot win” and a WIN credit are displayed. 
     The details of display specification will be described below. During idling, immediately after winning in the base game has occurred, a breakdown of a payout is displayed, and when a plurality of payouts have been won, each of the plurality of payouts is displayed by conducting the switching with the switching time unit of 0.5 second. In the other cases, the breakdown display area  4022  is made to be non-displayed. Upon pressing down a SPIN button  46 , the breakdown display area  4022  is made to be non-displayed. During WIN incrementing, a breakdown of the payout is displayed, when a plurality of payouts have been won, each of the plurality of payouts is displayed by conducting the switching with the switching time unit of 0.5 second. Upon bonus pick triggering, the breakdown display area  4022  is made to be non-displayed. Upon introducing free games, the breakdown display area  4022  is made to be non-displayed. During the rotation of reels in each of the free games, the breakdown display area  4022  is made to be non-displayed. Immediately after stopping the reels in each of the free games, if a line win has occurred, a breakdown of a payout is displayed, and when a plurality of payouts have been won, each of the plurality of payouts is displayed by conducting the switching with the switching time unit of 0.5 second. In the other cases, the breakdown display area  4022  is made to be non-displayed. 
     Upon introducing a bonus game, the breakdown display area  4022  is made to be non-displayed. Immediately after finishing the bonus game, in a case of a bonus (except a jackpot), a bonus win is displayed and when a jackpot has been won, a jackpot win is displayed. Immediately after winning a credit payout, a bonus win is displayed. Upon finishing the bonus game (upon returning to a game screen), the breakdown display area  4022  is made to be non-displayed. 
     As a display image, “each number of a Kind, a symbol name, WIN×number of WAYs in which winning has been established=12345678” is displayed. This display is conducted for the wins obtained during the base game and each of the free games. In addition, for the wins by TRIGGER symbols, as a display image, “FEATURE WIN=12345678” is displayed. 
     (Details of Display Screen: WIN Meter  402 : Total Display Area  4023 ) 
     A display area  4023  is to display a total in the breakdown display area. The details of display specification will be described below. During idling, immediately after winning in a base game has occurred, a total win is displayed. In the other cases, the total display area  4023  is made to be non-displayed. Upon pressing down a SPIN button  46 , the total display area  4023  is made to be non-displayed. During WIN incrementing, a total win is displayed therein. Upon bonus pick triggering, the total display area  4023  is made to be non-displayed. Upon introducing the free games, the total display area  4023  is made to be non-displayed. During the rotation of reels in each of the free games, the total display area  4023  is made to be non-displayed. Immediately after stopping the reels in each of the free games, if a line win has occurred, a total win is displayed, and in the other cases, the total display area  4023  is made to be non-displayed. Upon introducing a bonus game, the total display area  4023  is made to be non-displayed. Immediately after finishing the bonus game, a total win is displayed therein. Immediately after winning a credit payout, a total win is displayed therein. Upon finishing the bonus game (upon returning to a game screen), the total display area  4023  is made to be non-displayed. As a display image, “Total WIN=12345678” is displayed. 
     (Control Panel  30 ) 
     Below a lower image display panel  141 , as shown in  FIG. 49 , a control panel  30  is arranged. The control panel  30  includes a variety of buttons, a coin entry  21  for accepting coins into a cabinet  11 , a bill entry  22 , and the like. 
     Specifically, on the control panel  30 , a TAKE WIN/COLLECT button  32  and a SERVICE button  45  are arranged in a left area thereof, and a 1-BET button  34 , a 2-BET button  35 , a 3-BET button  36 , a 4-BET button  37 , and a 5-BET button  38  are arranged in an upper row in a central area thereof. Further, on the control panel  30 , a PLAY 8 CREDITS button  40 , a PLAY 18 CREDITS button  41 , a PLAY 38 CREDITS button  42 , a PLAY 68 CREDITS button  43 , and a PLAY 88 CREDITS button  44  are arranged in a lower row in the left area thereof. On the control panel  30 , a SPIN button (REPEAT BET/START FEATURE button)  46  is arranged in a right area thereof. In addition, between the TAKE WIN/COLLECT button  32  and the 1-BET button  34 , a GAMBLE button  31  is arranged. 
     In addition, as shown in  FIG. 49 , the CREDITS buttons  40  to  44  are provided with name labels, respectively. Specifically, the PLAY 8 CREDITS button  40  is provided with a name label “EXTREAM LEVEL, with one star sign, PLAY 8 CREDITS”. In addition, the PLAY 18 CREDITS button  41  is provided with a name label “EXTREAM LEVEL, with two star signs, PLAY 18 CREDITS”. In addition, the PLAY 38 CREDITS button  42  is provided with a name label “EXTREAM LEVEL, with three star signs, PLAY 38 CREDITS”. In addition, the PLAY 68 CREDITS button  43  is provided with a name label “EXTREAM LEVEL, with four star signs, PLAY 68 CREDITS”. In addition, the PLAY 88 CREDITS button  44  is provided with a name label “EXTREAM LEVEL, with five star signs, PLAY 88 CREDITS”. Each of these credit buttons  40  to  44  is operated, whereby an external appearance of each of these credit buttons  40  to  44  is displayed as an image on the lower image display panel  141 . 
     Specifically, when as a symbol bet, any of the credit buttons  40  to  44  is selected and a game is started, as shown in  FIG. 50 , in areas of the lower image display panel  141 , in which logos  418  (refer to  FIG. 28 ) are arranged (areas on both sides of a symbol display area  150 ), button images  420  indicating the external appearances each corresponding to the selected symbol bet are displayed. In  FIG. 50 , an example in which as a symbol bet, the PLAY 88 CREDITS button  44  is operated and the button images  420  of “EXTREAM LEVEL, with five star signs, PLAY 88 CREDITS” are displayed is shown. 
     The control panel  30  allows the same selections as those conducted by using a touch panel on a variety of selection screens. For example, operating the 1-BET button  34  allows a cursor used upon the selection to move in a left direction, and operating the 5-BET button  38  allows the cursor to move in a right direction. It is preferable that upon operating each of the buttons, a light source inside each of the buttons is lit up. 
     The above-mentioned SERVICE button  45  is an operation button used upon leaving his or her seat or requesting exchange from a gaming house employee. When the SERVICE button  45  is pressed down, as shown in  FIG. 51 , a RESERVED symbol  1460  with which a countdown for three minutes is conducted is displayed on the lower image display panel  141 , and a standby state is maintained for three minutes. It is to be noted that the SERVICE button  45  is active when a game is over. In addition, a light source inside the SERVICE button  45  is lit off and the SERVICE button  45  is made inactive during spinning of reels, during win incrementing (when the game is not over), during displaying of a HELP screen, upon the occurrence of an error, during displaying a presentation screen which can be cancelled, and during RS accounting. The RESERVED symbol  1460  is made to be non-displayed when the three minutes has passed or when the SERVICE button  45  is pressed down again during displaying of the RESERVED symbol  1460 . The GAMBLE button  31  is an operation button used upon shifting to a gamble game, for example, after finishing a bonus game. Here, the gamble game is a game played by using the obtained credits. The TAKE WIN/COLLECT button  32  is the so-called settling button with which credit data related to credits obtained in a variety of games is added to credit data stored in an IC card inserted into a PTS terminal  700 . The GAME RULE button  33  is a button pressed when a way of operating a game and the like are not known, and upon pressing the GAME RULE button  33 , a variety of pieces of HELP information are displayed on the later-described presentation mechanism  131  and the lower image display panel  141 . 
     The 1-BET button is a button with which each time the 1-BET button is pressed, a credit which a player currently has is bet one by one with respect to each activated line. The 2-BET button  35  is a button to start a game by placing two bets with respect to each activated line. In addition, the 3-BET button  36  is a button to start a game by placing three bets with respect to each activated line. In addition, the 4-BET button  37  is a button to start a game by placing four bets with respect to each activated line. In addition, the 5-BET button  38  is a button to start a game by placing five bets with respect to each activated line. Accordingly, by pressing each of the 1-BET button  34 , the 2-BET button  35 , the 3-BET button  36 , the 4-BET button  37 , and the 5-BET button  38 , the number of bets to be placed with respect to one line of the activated lines is determined. It is to be noted that in accordance with a change in the number of bets which can be placed, the design of each of the above-mentioned buttons may be changed. For example, bet buttons with which a credit and credits of “1”, “2”, “5”, “10”, and “15” can be placed may be provided. In this case, the bet buttons may be designed to be “BETx1”, “BETx2”, “BETx5”, “BETx10”, and “BETx15”. In addition, bet buttons with which a credit and credits of “1”, “2”, “5”, “10”, and “20” can be placed may be provided. In this case, the bet buttons may be designed to be “BETx1”, “BETx2”, “BETx5”, “BETx10”, and “BETx20”. 
     The SPIN button  46  with “REPEAT BET” denoted is a button used when scrolling of the symbol arrays in which the symbols  501  are depicted is started. In other words, the SPIN button  46  is used when spinning is started with the same contents of betting as those of the previous betting. In addition, this SPIN button  46  functions also as a button for starting the bonus game and a button for adding a payout obtained in the bonus game to a credit. When the SPIN button  46  allows a game to be started with the same contents of betting (a bet amount and a number of activated lines) as those of the previous betting, as the designed thereof, the SPIN button  46  may be a button with “REPEAT BET/START FEATURE” denoted. The bill entry  22  is to identify whether or not bills are legitimate and to accept the legitimate bills into a cabinet  11 . 
     (Process Operation of Slot Machine  10 : GAMBLE Game) 
     As shown in  FIG. 52 , when a GAMBLE start condition is established, for example, when a COLLECT button is pressed, in a state in which a money amount is less than a process value such as one dollar, a “RESIDUAL GAMBLE” screen is displayed (F 253 ). When a GAMBLE button is pressed, a GAMBLE game is started. On the other hand, when the COLLECT button is pressed, a call attendant is displayed (F 254 ). When a SPIN button  46  is pressed, the screen is returned to a screen in a base game (F 255 ). 
     When “WIN” has occurred in the GAMBLE game (F 256 ), a predetermined money amount such as one cent is won and concurrently, a token is paid out from a hopper. In addition, the addition to a CREDIT meter is conducted (F 257 ). Thereafter, after the elapse of a predetermined time period such as two seconds, the screen is returned to the screen in the base game (F 258 ). On the other hand, when “LOSE” has occurred in the GAMBLE game (F 259 ), a LOSE screen is displayed (F 260 ). Thereafter, after the elapse of a predetermined time period such as two seconds, the screen is returned to the screen in the base game (F 261 ). 
     Functions of buttons in the progress of the GAMBLE game will be described. A TAKE WIN/COLLECT button  32  functions as a “TAKE WIN” (CASH OUT) button in “GAMBLE ON” and “GAMBLE OFF” states. A GAMBLE button  31  functions as a “GAMBLE START” button in the “GAMBLE ON” state and does not function in the “GAMBLE OFF” state. Each BET button is inactive in the “GAMBLE ON” state and functions as the “GAMBLE START” button in the “GAMBLE OFF” state. A SPIN button  46  functions as a button to shift “to a base game” in the “GAMBLE ON” and “GAMBLE OFF” states. 
     As shown in  FIG. 53 , the “RESIDUAL GAMBLE” screen has a card display area, a navigation area, and a meter area. In the card display area, a card image is displayed. The whole card display area is provided with a touch sensor function. In the navigation area, a variety of navigational messages are displayed. 
     A limit of a value which allows winning in the GAMBLE game is set by using an audit screen. An upper limit of the number of times at which the GAMBLE game is played is also set by using the audit screen. For example, the upper limit thereof is five times, and the upper limit can be set within the upper limit. Whether a touch panel is turned on or off is selectable. 
     As shown in  FIG. 54 , upon shifting to the GAMBLE game, a message “PLAY ON, GAMBLE or TAKE WIN RED” is caused to disappear. It is to be noted that immediately after RAM clear, nothing is displayed in a card history until the GAMBLE game is played. A message “SELECT RED OR BLACK OR TAKE WIN” is displayed. A heart-shaped red button and a spade-shaped black button on the GAMBLE screen are lit up and a TAKE WIN button in a central portion thereof is lit up. The other buttons are lit off. 
     Next, as shown in  FIG. 55 , in “GAMBLE AMOUNT”, an amount to be bet is displayed. Any of the choices of the heart-shaped red button and the spade-shaped black button on the GAMBLE screen and the TAKE WIN button in the central portion is selected. When the TAKE WIN button is selected, a value of a win is added to a credit at one time, a game state is returned to an idle state. 
     In a case of a failure in the GAMBLE game, as shown in  FIG. 56 , the choices not selected are darkened. In a left end portion of a GAMBLE history column, the card history is displayed at one time. The previous card history shifts to right. It is to be noted that a shifting trajectory has no animation and a one-time display is conducted. A card result in the central portion is displayed at one time. At this point in time, values in the WIN meter and the GAMBLE meter are not changed. A sound indicating “unlucky” is outputted, and after several seconds, the game shifts to a base game. 
     In a case of a success in the GAMBLE game, as shown in  FIG. 57 , the choices not selected are darkened. In the left end portion of the GAMBLE history column, the card history is displayed at one time. The previous card history shifts to right. It is to be noted that a shifting trajectory has no animation and a one-time display is conducted. In the central card, a normal card and a card having a WIN message are alternately displayed in each one frame, and a success sound is outputted for a predetermined time period. In the WIN meter, a value which is increased by the GAMBLE result is added at one time. When the GAMBLE game is played at up to the upper limit of times, credits of win values are added at one time, and the game state is returned to the idle state. As shown in  FIG. 57 , when the GAMBLE game is not played at up to the upper limit of times, the card is flipped over, and the GAMBLE game is continued. 
     Hereinabove, the embodiment of the present invention is described. However, the specific example is merely exemplified, the present invention is not particularly limited thereto, and appropriate design modifications and variations of the specific configuration of the parts and the like are possible. In addition, the effects described in the embodiment of the present invention are merely the most favorable effects coming from the present invention, and the effects according to the present invention are not limited to the effects described in the embodiment of the present invention. 
     Next, additional functions and configuration of the slot machine  10  of the above-described embodiment will be described in details. 
     (Symbol Bet: Increases in Kinds and Numbers of Special Symbols for Each Bet Number) 
     As shown in  FIG. 5 , in a gaming machine according to the present embodiment, symbol arrays are displayed in a varying manner, and in association with increases in bet numbers and credits, kinds and numbers of special symbols displayed on the symbol arrays are increased. Specifically, the slot machine  10  (gaming machine  300 ) has a lower image display panel  141  (liquid crystal display device) as a symbol display device. On the lower image display panel  141 , a plurality of symbol arrays  170  in which a plurality of symbols including base game symbols  502  and special symbols  503  which are more advantageous than said base game symbols  502  are arrayed are displayed in the varying manner, and thereafter, symbols  501  are rearranged in a symbol display area  150  composed of a plurality of cells  28  (refer to  FIG. 26 , also referral to as display blocks  28 ) in a matrix shape, thereby displaying a game result. 
     The slot machine  10  has a control panel  30  as a bet input device, which is operable to accept betting whose bet number is designated by a player. The control panel  30  has credit buttons  40  to  44  (a PLAY 8 CREDITS button  40 , a PLAY 18 CREDITS button  41 , a PLAY 38 CREDITS button  42 , a PLAY 68 CREDITS button  43 , and a PLAY 88 CREDITS button  44 ), thereby allowing gradual setting of bet numbers to be set. Hereinafter, the bet based on the credit buttons  40  to  44  are referred to as “symbol bets (SBB) 8, 18, 38, 68, and 88”, respectively. On the slot machine  10 , a base game in which with betting as a condition, the symbols  501  are rearranged on the lower image display panel  141  is executed. On the slot machine  10 , the symbols  501  arrayed in the plurality of symbol arrays  170  are modified such that in accordance with an increase in the bet number placed by a player, a percentage of a number of the special symbols  503  to a number of all of the symbols  501  in the plurality of symbol arrays  170  is increased. 
     As described above, the larger the bet number is, the more increased the percentage of the number of the special symbols  503  which are more advantageous than the base game symbols  502  is. Thus, by the way of increasing the number of the special symbols  503 , it is clearly shown to a player that in accordance with the increase in the bet number, a player can more advantageously play a game. As a result, the likelihood that a profit of a gaming machine administrator can be increased is enhanced. 
     It is to be noted that “the special symbols  503  which are more advantageous than the base game symbols  502 ” denotes that there is a likelihood with which a more advantageous game result can be obtained by the rearrangement of the special symbols  503  in the symbol display area  150  than by the rearrangement of the base game symbols  502  therein. The “advantageous game result” denotes that an amount of a payout awarded based on the game result is large. For example, it is denoted that when symbols  501  whose number is a predetermined number or more are rearranged and winning corresponding to said symbols  501  is determined, an amount of a payout of winning corresponding to the special symbols  503  is larger than an amount of a payout of winning corresponding to the base game symbols  502 . 
     In addition, a bet operation in the present embodiment is conducted as described below. First, a player determines a value of a number of bets by using any of the credit buttons  40  to  44 , the value used as a base of a large quantity in a bet number. By using any of bet buttons  34  to  38  (a 1-BET button  34 , a 2-BET button  35 , a 3-BET button  36 , a 4-BET button  37 , and a 5-BET button  38 ) provided on the control panel  30 , a player selects a multiplier used upon obtaining a payout. As described above, the large quantity of the number of bets may be determined by the base value determined by using the credit buttons  40  to  44 . For example, when the PLAY 88 CREDITS button  44  and the 2-BET button  35  are selected, the bet number is “88 credits×2=176 credits” and the payout multiplier is two times. It is to be noted that which of each of the bet buttons  34  to  38  and each of the credit buttons  40  to  44  may be first operated. 
     The special symbols  503  include a plurality of kinds of symbols whose degrees of advantageousness are different from one another in a gradual manner. As shown in  FIG. 7 , the special symbols  503  include: BAT symbols  503   e ; GOURD symbols  503   d  whose degree of advantageousness is higher than a degree of advantageousness of the BAT symbols  503   e ; FISH symbols  503   c  whose degree of advantageousness is higher than a degree of advantageousness of the GOURD symbols  503   d ; POT symbols  503   b  whose degree of advantageousness is higher than a degree of advantageousness of the FISH symbols  503   c ; and DRAGON symbols  503   a  whose degree of advantageousness is higher than a degree of advantageousness of the POT symbols  503   b . In accordance with the increase in the number of bets placed by a player, the increase in the percentage of the special symbols  503  whose degree of advantageousness is higher is permitted. 
     In the present embodiment, these plurality of kinds of special symbols  503   e ,  503   d ,  503   c ,  503   b , and  503   a  whose degrees of advantageousness are different from one another in the gradual manner are associated with the credit buttons  40  to  44 , respectively. Increases in the percentages of the respective kinds of specific symbols associated with these credit buttons  40  to  44  are permitted. 
     In addition, it is only required for the symbol arrays  170  to be advantageously modified in accordance with the increase in the number of bets, and the way of modification is not limited. For example, the base game symbols  502  may be modified to the special symbols  503  in accordance with the increase in the number of bets. In addition, the special symbols  503  may be increased in accordance with the increase in the number of bets. In addition, the base game symbols  502  may be decreased in accordance with the increase in the number of bets. In addition, the above-mentioned modification, increase, and decrease may be combined. 
     In addition, in the present embodiment, when a predetermined condition is satisfied in the base game, free games, in each of which betting is not required, are executed. Also in each of the free games, the symbol arrays  170  may be modified to advantageous symbol arrays  170  in accordance with the increase in the number of bets. Specifically, in each of the free game, on the lower image display panel  141 , a plurality of symbol arrays  170  which are different from the plurality of symbol arrays  170  used in the base game are displayed in the varying manner and thereafter, the symbols  501  are rearranged in the symbol display area  150 . The modification of the symbols arrayed in the plurality of symbol arrays  170  may be configured such that in accordance with the increase in the number of bets placed in the base game immediately prior to shifting to the free games, in which the free games are triggered, a percentage of the special symbols  503  to all symbols  501  in the plurality of symbol arrays  170  is more increased than a percentage in the base game. 
     One example of the symbol arrays  170  is shown in  FIG. 8  to  FIG. 17 . In  FIG. 8  to  FIG. 12 , one example of symbol arrays  170  corresponding to the symbol bets 8, 18, 38, 68, and 88 in the base game is shown. In  FIG. 13  to  FIG. 17 , one example of symbol arrays  170  corresponding to the symbol bets 8, 18, 38, 68, and 88 in the free games is shown. Reels 1 to 5 in  FIG. 8  to  FIG. 17  correspond to the later-described pseudo reels  151  to  155 , and symbol arrays  170 A to  170 E to be varied respectively thereon are shown. In addition, in  FIG. 18  and  FIG. 19 , the numbers of the respective kinds of the special symbols  503  and the percentages of the respective kinds of the special symbols  503  to all symbols in the base game and the free game are shown. 
     As shown in  FIG. 18 , in the base game, in a case of one symbol bet, symbol arrays  170  in which only the number of the BAT symbols  503   e  is large are used. In addition, in a case of five symbol bets, symbol arrays  170  in which the numbers of the BAT symbols  503   e  and the GOURD symbols  503   d  are large are used. In addition, in a case of 15 symbol bets, symbol arrays  170  in which the numbers of the BAT symbols  503   e , the GOURD symbols  503   d , and the FISH symbols  503   c  are large are used. In addition, in a case of 30 symbol bets, symbol arrays  170  in which the numbers of the BAT symbols  503   e , the GOURD symbols  503   d , the FISH symbols  503   c , and the POT symbols  503   b  are large are used. In addition, in a case of 60 symbol bets, symbol arrays  170  in which the numbers of the BAT symbols  503   e , the GOURD symbols  503   d , the FISH symbols  503   c , the POT symbols  503   b , and the DRAGON symbols  503   a  are large are used. As described above, the special symbols  503  whose increase or increases in the number or numbers is or are permitted are associated with the number or numbers of the symbol bets. 
     In addition, when the symbol bets are compared with one another, in accordance with the increase in the number of the symbol bets, the numbers of all of the kinds of the special symbols  503  are increased, and further, the numbers of all of symbols are decreased. In other words, the larger the number of symbol bets is, the more increased the percentages of all kinds of the special symbols  503  are. In the present embodiment, since probabilities with which symbols  501  which the symbol arrays  170  respectively have are rearranged are the same as one another, it is understood that the larger the number of symbol bets is, the more the percentage of the special symbols  503  is increased, thereby enhancing the likelihood with which an advantageous game result is obtained. It is to be noted that the way of increasing the respective kinds of the special symbols  503  is not limited thereto, and it is only required for the way of increasing the respective kinds of the special symbols  503  to allow the advantageousness to be associated with the increase in the bet numbers. 
     For example, as shown in  FIG. 19 , in a case of the one symbol bet in the free games, the percentages of the special symbols  503  are higher than the percentages in the other symbol bets. However, there is bias in the arrangement of the respective kinds of the special symbols  503  on each of the reels, probabilities, with each of which a game result related to the special symbols  503  is obtained, are set to be low. 
     (Determination of One from a Plurality of Bonuses Whose Degrees of Advantageousness are Different from One Another in a Gradual Manner.) 
     As shown in  FIG. 6 , on a gaming machine according to the present embodiment, in a bonus game, one bonus is determined from among a plurality of bonuses whose degrees of advantageousness are different from one another in a gradual manner. Specifically, the slot machine  10  (gaming machine  300 ) has a lower image display panel  141  functioning as a display, on which a plurality of choice images  1421  are displayed in a pick-out bonus game in which one bonus is determined from among the plurality of bonuses (a GRAND bonus, a MAJOR bonus, a MINOR bonus, and a MINI bonus) whose degrees of advantageousness are set to be different from one another in the gradual manner. The slot machine  10  has a control panel  30  as a selection input device which allows one to be selected from among the plurality of choice images  1421  on the lower image display panel  141 . Each time one is determined from among the plurality of choice images  1421  by using the control panel  30 , each of the choice images  1421  is modified to any of bonus rank images  1422  (a GRAND rank image  1422   a , a MAJOR rank image  1422   b , a MINOR rank image  1422   c , and a MINI rank image  1422   d ) corresponding to the plurality of bonuses. It is to be noted that the bonus is also referral to as a progressive, a jackpot, and a progressive jackpot. 
     On the slot machine  10 , in the above-described bonus game, prior to performing a presentation display related to the bonus game, one bonus is previously determined from among the plurality of bonuses. The slot machine  10  controls the lower image display panel  141  such that in the presentation display, it is displayed that a number of only the bonus rank images  1422  corresponding to the determined bonus reaches a predetermined number (for example, four). In other words, a player obtains the bonus corresponding the kind of bonus rank images  1422  whose number has reached the predetermined number through the selections of the choice images  1421 . 
     Further, in the presentation display, prior to performing the display in which the number of the bonus rank images  1422  corresponding to the previously determined bonus reaches the predetermined number, bonus rank images  1422  corresponding to bonuses among the plurality of bonuses, whose degrees of advantageousness are high in rank, are displayed. 
     As described above, in the presentation display, prior to performing the display in which the number of the bonus rank images  1422  corresponding to the previously determined bonus reaches the predetermined number, the bonus rank images  1422  corresponding to the bonuses among the plurality of bonuses, whose degrees of advantageousness are high in rank, are displayed. Thus, even when the rank of the determined bonus is any rank, a player playing the bonus game prior to the notification of the bonus is provided with a sense of expectation that a player is likely to obtain any bonus which is high in rank, thereby allowing new entertainment properties to be provided. 
     Although in the present embodiment, the “bonuses which are high in rank” are the GRAND bonus and the MAJOR bonus, the present invention is not limited thereto. For example, only the most advantageous GRAND bonus may be the bonus which is high in rank. In addition, although in the presentation display, the bonus rank images  1422  corresponding to “bonuses which are high in rank” are displayed, the present invention is not limited thereto. 
     For example, in the bonus game according to the present embodiment, either of a first mode (scenario mode) in which a part of all of the plurality of bonus rank images  1422  to be displayed on the lower image display panel  141  are previously determined; and a second mode (random mode) in which all of the plurality of bonus rank images  1422  to be displayed on the lower image display panel  141  are randomly determined is previously determined. In the first mode, prior to displaying the predetermined number of bonus rank images  1422  corresponding to the bonuses previously determined as a result of the bonus game, the bonus rank images  1422  corresponding to the “bonuses which are high in rank” are displayed. On the other hand, in the second mode, since all of the bonus rank images  1422  are randomly determined, there is a likelihood that the bonus rank images  1422  corresponding to the “bonuses which are high in rank” are not displayed. 
     In addition, in the base game, as described above, the plurality of symbols  501  are rearranged in the symbol display area  150  on the lower image display panel  141 , thereby displaying a game result. Here, the plurality of symbols  501  include WILD symbols  505  (refer to  FIG. 7 ) as specific symbols. On the slot machine  10 , when the WILD symbols  505  are rearranged in the symbol display area  150 , a drawing to determine whether or not any of the bonuses (any of the GRAND bonus, the MAJOR bonus, the MINOR bonus, and the MINI bonus) is triggered is conducted with a probability in accordance with the number of the rearranged WILD symbols  505 . In other words, when the WILD symbols whose number is large are displayed in a stopped manner, a probability with which any of the plurality of ranks is won is gradually increased. Further, the drawing to determine whether or not any of the bonuses is triggered is influenced by the above-described bet number. In other words, on the slot machine  10 , when the WILD symbols  505  are rearranged in the symbol display area  150 , the drawing to determine whether or not the bonus game is triggered is conducted with a probability in accordance with the number of the rearranged WILD symbols  505 . 
     Specifically, as shown in  FIG. 7 , the WILD symbols  505  include normal WILD symbols  505   a  (WILD) and a 2× WILD symbol  505   b  (2× WILD). As shown in  FIGS. 12 to 17 , the normal WILD symbols  505   a  are arranged on Reels 2 and 4 (pseudo reels  152  and  154 ) one by one. In addition, the 2× WILD symbol  505   b  is arranged on Reel 3 (a pseudo reel  153 ). In the present embodiment, as shown in  FIG. 20 , one or more WILD symbols  505  are rearranged in the symbol display area  150 , whereby the drawing to determine whether or not the bonus game is triggered is conducted. 
     In addition, in accordance with the number of the rearranged WILD symbols  505 , a winning probability of the bonus game is modified. Specifically, with respect to a winning probability with which the bonus game is triggered when one normal WILD symbol  505   a  is rearranged, when two normal WILD symbols  505   a  are rearranged, a winning probability with which the bonus game is triggered is doubled. In addition, a winning probability with which the bonus game is triggered when one 2×WILD symbol  505   b  is rearranged is twice (corresponding to two normal WILD symbols  505   a ) the winning probability with which the bonus game is triggered when one normal WILD symbol  505   a  is rearranged. In other words, a winning probability with which the bonus game is triggered when all of the WILD symbols  505  (two normal WILD symbols  505   a  and one 2×WILD symbol  505   b ) are rearranged is four times the winning probability with which the bonus game is triggered when one normal WILD symbol  505   a  is rearranged. 
     In addition, for the presentation display, the lower image display panel  141  is provided with rank count areas  1423  in which the number of the kinds of the bonus rank images  1422  are counted. In the rank count areas  1423 , count images  1423   a  of the bonus rank images  1422 , whose each number is a predetermined number, are provided. Each time each of the bonus rank images  1422  is displayed, the number of the displayed bonus rank images  1422  is counted for each of the kinds thereof, and the counted number is displayed in each of the rank count areas  1423 . In other words, the count images  1423   a  which are counted are modified to the same images as the bonus rank images  1422 . 
     In addition, as shown in  FIG. 6 , one choice image  1421  is modified to a double bonus rank image  1422   e  indicating two bonus rank images. Specifically, in  FIG. 6 , the double bonus rank image  1422 E of the GRAND rank indicating the two bonus rank images is displayed. The double bonus rank image  1422   e  is counted as two bonus rank images  1422 . Only the double bonus rank images  1422   e  which correspond to high ranks (the GRAND ranks and the MAJOR rank) are displayed. 
     In addition, in the present embodiment, the above-described bonus is triggered also by a drawing conducted each time the above-described base game is executed. In other words, on the slot machine  10 , when the WILD symbols  505  are rearranged in the symbol display area  150 , a first drawing to determine whether or not any of the bonuses is triggered, with the probability in accordance with the number of the rearranged WILD symbols  505 . Further, a second drawing to determine whether or not any the bonuses is triggered is conducted each time the base game is executed, separately from the above-mentioned first drawing. The bonuses will be described later in details. 
     (Display Mode of Bonus/Free Counter/Message Area  399 ) 
     A bonus/free counter/message will be specifically described. It is to be noted that the description on the same configuration and the like as that of the embodiment is omitted. 
     As shown in  FIG. 62 , an area  399  in which a bonus/free counter/message is displayed is provided above a symbol display area  150 . Said bonus/free counter/message area  399  is located in a left end portion, viewed from a player. In the bonus/free counter/message area  399 , “BOUNS REELS IN PLAY” is displayed during the free games, and thereafter, images of special symbols, whose numbers are increased in symbol arrays to which the previous symbol arrays are modified in accordance with the number of the WILD symbols, and a message are displayed. In other words, in the bonus/free counter/message area  399 , a message “Reals have an increased number” is displayed and behind said message, the images of the special symbols  503  and  504  or the like, whose numbers are increased, are displayed. 
     (Notification of Specific Symbols Whose Percentages of Numbers are Increased.) 
     For example, special symbols  503  whose percentages of numbers are increased may be displayed on a lower image display panel  141 , a middle image display panel  142 , or the like. 
       FIG. 62  is an explanatory diagram illustrating a display screen on the lower image display panel  141 . As described in the above embodiment, in accordance with an increase in the number of symbol bets placed by a player, a percentage of a number of each kind of special symbols  503  to a number of all of symbols  501  in a plurality of symbol arrays  170  is increased. For example, when betting is made by selecting a credit button  41 , percentages of the numbers of BAT symbols  503   e  and GOURD symbols  503   d  thereto in the symbol arrays  170  are increased, as compared with betting made by selecting a credit button  40 . In the present modification example, in a upper left end portion of the lower image display panel  141 , a bonus/free counter/message area  399  for notifying the special symbols  503  whose percentages of the numbers thereto are increased is displayed. The bonus/free counter/message area  399  indicates with images the special symbols  503  whose percentages of the numbers thereto are increased in the symbol arrays  170  being used in a current game and indicates that the percentages of the numbers of said special symbols  503  thereto are increased in the symbol arrays  170 . In the example shown in  FIG. 62 , it is notified that in the symbol arrays  170 , the percentages of the numbers of the BAT symbols  503   e  and the GOURD symbols  503   d  thereto are increased. Specifically, upon pressing down the credit button  41 , sound effects are outputted, and concurrently, a message “Reals have an increased number” indicating that the percentages of the numbers of the BAT symbols  503   e  and the GOURD symbols  503   d  thereto are increased, and the images of the BAT symbol  503   e  and the GOURD  503   d  are displayed while moving from left to right in the bonus/free counter/message area  399 . 
       FIG. 63  is an explanatory diagram illustrating a display screen on the middle image display panel  142 . As shown in  FIG. 63 , when the game in which the percentages of the numbers of the special symbols  503  thereto are increased in the symbol arrays  170  is being executed, the special symbols  503  whose percentages of the numbers of the special symbols  503  thereto are increased are notified so as to be displayed in payout tables. In the example shown in  FIG. 63 , in the payout tables, notification images  441  indicating that the percentages of the numbers of the BAT symbols  503   e  and the GOURD symbols  503   d  are increased are displayed, respectively. 
       FIG. 64  is an explanatory diagram illustrating a HELP screen. In  FIG. 64 , as the first page of the HELP screen, shown is an increased symbol explanation page  442  in which kinds of special symbols  503  whose percentages are increased in a gradual manner for each of the bet numbers are described. Specifically, on the increased symbol explanation page  442 , displayed are five symbol bet images  442   a  indicating in a gradual manner bet numbers, which can be placed, with the numbers of star signs and numerical values of the bet numbers; and corresponding increased symbol image  442   b  which respectively correspond to the symbol bet images  442   a  and in which kinds of the special symbols  503  whose percentages of the numbers thereof in the symbol arrays  170  are increased are indicated with images and text. The five symbol bet images  442   a  are associated with credit buttons  40  to  44 , respectively and allow a player to clearly understand which kinds of special symbols  503  are increased upon using each of the credit buttons  40  to  44 . In the present modification example, credit numbers of 8, 18, 38, 68, and 88 are bet by the credit buttons  40  to  44 , respectively. 
     (Trigger of Bonus) 
     In the above-described embodiment, the first drawing to determine whether or not any the bonuses is triggered is conducted with the probability in accordance with the number of the rearranged WILD symbols  505 , and further, the second drawing to determine whether or not any of the bonuses is triggered is conducted each time the base game is executed, separately from the above-mentioned first drawing. However, the present invention is not limited thereto. In the modification example, the second drawing as described above is not conducted, and a third drawing to determine whether or not any of the bonuses is triggered is conducted when there is/are a payout/payouts based on DRAGON symbols  503   a  which are special symbols  503  (top symbols) whose payouts are the highest. The payouts based on the DRAGON symbols  503   a  includes a payout obtained by the rearrangement of three or more DRAGON symbols  503   a  and a payout obtained by the rearrangement of three or more DRAGON symbols  503   a  and WILD symbols  505 . As described above, in the present modification example, any of the bonuses is triggered by the first drawing and the third drawing. It is to be noted that the third drawing is executed only in the base game. 
     As shown in  FIG. 65 , in a WILD symbol drawing table, numerical values used in the first drawing are stored. As these numerical values, values which are different from one another for each of symbol bets (SBB1 to 5) are used, and these numerical values are selected in accordance with each of set values (V1 to V7) which are set by an AUDIT screen. In addition, as shown in  FIG. 65 , the WILD symbol drawing table is selected from five kinds of tables by set values (SC01 to SC48) which are set by the AUDIT screen. 
     The first drawing is conducted with a probability whose denominator is a numerical value selected from the WILD symbol drawing table and whose numerator is a value obtained by multiplying a value, obtained by multiplying the number of the WILD symbols  505  appearing in a stopped manner by 10,000,000,000,000, by a multiplier determined by any of the bet buttons  34  to  38 . 
     In addition, as shown in  FIG. 66 , in a top symbol drawing table, numerical values used in the third drawing are stored. As these numerical values, values which are different from one another for each of symbol bets (SBB1 to 5) are used, and these numerical values are selected in accordance with each of set values (V1 to V7) which are set by the AUDIT screen. In addition, as shown in  FIG. 70 , the top symbol drawing table is selected from five kinds of tables by set values (SC01 to SC48) which are set by the AUDIT screen. 
     The third drawing is conducted with a probability whose denominator is a numerical value selected from the top symbol drawing table and whose numerator is a value obtained by multiplying a value, obtained by multiplying the number of the WILD symbols  505  appearing in the stopped manner by 10,000,000,000,000, by a multiplier determined by any of the bet buttons  34  to  38 . 
       FIG. 67  is a flowchart of a modification example of a base game execution process. The processes at step S 80  to S 92  are executed in the same manner as those at step S 11  to S 22  in the base game execution process shown in  FIG. 41 . 
     Next, a main CPU  71  determines whether or not three or more DRAGON symbols  503   a  have been rearranged (S 93 ). When the three or more DRAGON symbols  503   a  have been rearranged (S 93 : YES), the bonus game drawing is conducted, it is determined whether or not winning has occurred in the bonus game (S 94 ). Thereafter, when the winning has occurred in the bonus game, the bonus game is executed (S 95 ). When the three or more DRAGON symbols  503   a  have not been rearranged (S 93 : NO), when the winning in the bonus game has not occurred (S 94 : NO), or after the execution of the bonus game triggered by the rearrangement of the three or more DRAGON symbols  503   a , this routine is finished. 
     As described above, the bonus game is triggered by the first drawing and the third drawing. Accordingly, when the WILD symbols  505  have been rearranged in the symbol display area  150  and the three or more DRAGON symbols  503   a  have been rearranged, and thereafter, when winning has occurred in the first drawing and the third drawing, the bonus game is executed twice. 
     (Bonus Game) 
     Although in the above-described embodiment, the bonus game which is triggered by the base game in which any of the credit buttons  40  to  44  is selected is executed under the same condition, the present invention is not limited thereto. For example, depending on one selected from among the credit buttons  40  to  44 , one bonus which can be obtained may be determined from among a plurality of bonuses (a GRAND bonus, a MAJOR bonus, a MINOR bonus, and a MINI bonus) whose degrees of advantageousness are set to be different from one another in a gradual manner. 
     Specifically, in the present modification example, in a bonus game (hereinafter, referred to as a first bonus game) which is triggered by a base game in which the credit button  43  or the credit button  44  is selected, the GRAND bonus, the MAJOR bonus, the MINOR bonus, and the MINI bonus are set to be obtainable. In addition, in a bonus game (hereinafter, referred to as a second bonus game) which is triggered by a base game in which any one of the credit buttons  40  to  42  is selected, the MAJOR bonus, the MINOR bonus, and the MINI bonus are set to be obtainable. The description on the first bonus game is omitted since the first bonus game is the same as in the above-described embodiment. Hereinafter, the second bonus game will be described. 
     As shown in  FIG. 68 , upon starting the second bonus game, on a lower image display panel  141 , a plurality of choice images  1421  are displayed. Although in the first bonus game, 14 choice images  1421  are displayed, in the second bonus game, 11 choice images  1421  are displayed. Because two bonus rank images  1422  for a GRAND bonus and one double bonus rank images  1422   e  for the GRAND bonus are omitted from the choices in the first bonus game, the number of the choice images  1421  to be displayed is reduced. Thus, in the second bonus game, any of only the MAJOR bonus, the MINOR bonus, and the MINI bonus are set to be selectable. 
     In addition, on the lower image display panel  141 , rank count areas  1423  in which counts of kinds of the bonus rank images  1422  are displayed is provided. In the second bonus game, since the three kinds of the MAJOR bonus, the MINOR bonus, and the MINI bonus are selectable, respective the rank count areas  1423  corresponding to these three kinds of bonuses are provided. In each of the rank count area  1423 , count images  1423   a  for each of the bonus rank images  1422 , whose number is a predetermined number (four), are provided. Each time the bonus rank image  1422  is displayed, the number of each of the kinds of the bonus rank images  1422  is counted, and the counted number is displayed in each of the rank count areas  1423 . In other words, the count images  1423   a  which are counted are modified to the same images as the bonus rank images  1422 . 
     On the slot machine  10 , in the above-described second bonus game, prior to performing a presentation display related to the second bonus game, any one of the MAJOR bonus, the MINOR bonus, and the MINI bonus is previously determined. The slot machine  10  controls the lower image display panel  141  such that in the presentation display, it is displayed that a number of only the bonus rank images  1422  corresponding to the determined bonus reaches a predetermined number (for example, four). In other words, a player obtains the bonus corresponding the kind of bonus rank images  1422  whose number has reached the predetermined number through the selections of the choice images  1421 . 
     In  FIG. 69 , an example in which the MINOR bonus has been won in the second bonus game is shown. Specifically, as a result of the selections of the choice images  1421  by a player, four MINOR rank images  1422   c  are displayed, and the number thereof has reached the predetermined number (four). Only double bonus rank images  1422   e  which are counted as images corresponding to the MAJOR bonus are included in the choices. 
     In the first bonus game and the second bonus game, with reference to respective tables described below, drawings and the like are executed. It is to be noted that by setting set values (SC01 to SC48) by an AUDIT screen or the like, values to be referenced in each of the tables can be modified. 
     As shown in  FIG. 70 , in a progressive initial value table, initial values in the first bonus game and the second bonus game are stored. On the slot machine  10 , with reference to the progressive initial value table, progressive initial values to be awarded as payouts in the bonus game are determined. 
     In addition, as shown in  FIG. 71 , in a progressive default increment rate table, default increment rates in the first bonus game and the second bonus game are stored. On the slot machine  10 , with reference to the progressive default increment rate table, variation percentages of progressive values are determined. 
     It is to be noted that the progressive values are limited. For the GRAND bonus, the limit is set to 999,999,999.99 dollars; for the MAJOR bonus, the limit is se to 9,999,999.99 dollars; for the MINOR bonus, the limit is set to 999,999.99 dollars; and for the MINI bonus, the limit is set to 999,999.99 dollars. 
     In addition, as shown in  FIG. 72 , in a first bonus game drawing table, weights used when in the first bonus game, any one of the GRAND bonus, the MAJOR bonus, the MINOR bonus, and the MINI bonus is determined by a drawing are stored. In other words, a value whose denominator is each of these weights and whose numerator is each of these weights is a probability with which each of the bonuses is obtained in the first bonus game. 
     In addition, as shown in  FIG. 73 , in a second bonus game drawing table, weights used when in the second bonus game, any one of the MAJOR bonus, the MINOR bonus, and the MINI bonus is determined by a drawing are stored. In other words, a value whose denominator is each of these weights and whose numerator is each of these weights is a probability with which each of the bonuses is obtained in the second bonus game. 
     As described above, in accordance with the increase in the number of bets placed by a player, in the bonus game triggered when a result of the base game executed based on said bets satisfies the predetermined condition, the upper limit of the bonus which can be obtained is set to be high. 
     As shown in  FIG. 74 , on a HELP screen, displayed is a bonus explanation page  443  which explains the bonus game and in which it is described that depending on the selection of any one of the credit buttons  40  to  44 , a bonus which can be obtained is determined from among the plurality of bonuses whose degrees of advantageousness are set in the gradual manner. In the present modification example, depending on any one of the credit buttons  40  to  44  to be selected, each of five levels (Extreme Level) is determined. In the bonus explanation page  443 , it is indicated that in the bonus game triggered by the base game started at each of the level  4  and level  5  through the selection of each of the credit button  43  and the credit button  44 , four kinds of bonuses (the GRAND bonus, the MAJOR bonus, the MINOR bonus, and the MINI bonus) can be obtained. In addition, in the bonus explanation page  443 , it is indicated that in the bonus game triggered by the base game started at each of the level  1  to level  3  through the selection of each of the credit button  40  to the credit button  42 , three kinds of bonuses (the MAJOR bonus, the MINOR bonus, and the MINI bonus) can be obtained. 
     (First Modification Example of Symbol Arrays in Base Game and Free Games) 
     Although in the above-described embodiment, the numbers of the WILD symbols  505  are not changed in the base game and the free game, the present invention is not limited thereto. In addition, although in the above-described embodiment, the normal WILD symbols  505   a  and the 2× WILD symbol  505   b  are used, only the normal WILD symbols  505   a  may be used. 
     In  FIG. 75 , symbol arrays in a base game with one symbol bet are shown. The WILD symbols  505  are arranged in a position of “11” on a second reel, positions of “15” and “45” on a third reel, and a position of “36” on a fourth reel. In other words, a probability with which the WILD symbols  505  are rearranged in a symbol display area  150  on the second reel is 3/68; a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the third reel is 6/64; and a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the fourth reel is 3/64. 
     In  FIG. 76  and  FIG. 77 , symbol arrays in free games triggered by the base game with the one symbol bet are shown. The WILD symbols  505  are arranged in a position of “9” on the second reel, positions of “0”, “1”, and “2” on the third reel, and a position of “34” on the fourth reel. In other words, a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the second reel is 3/96; a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the third reel is 100%; and a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the fourth reel is 3/61. 
     As described above, as compared with the base game with the one symbol bet, in the free games triggered by the base game with the one symbol bet, the WILD symbols  505  are set to be stopped on all positions on the third reel. Accordingly, each time the rearrangement in each of the free games is executed, the first drawing for a bonus game triggered by the stopping of the WILD symbols  505  is surely executed. 
     In  FIG. 78 , symbol arrays in the base game with five symbol bets are shown. The WILD symbols  505  are arranged in positions of “11”, “17”, and “44” on the second reel, positions of “3”, “15”, and “46” on the third reel, and positions of “36” and “51” on the fourth reel. In other words, a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the second reel is 9/60; a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the third reel is 9/60; and a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the fourth reel is 6/60. 
     As described above, as compared with the base game with the one symbol bet, in the base game with the five symbol bets, the symbol arrays are modified such that the probabilities, with each of which the WILD symbols  505  are rearranged, become high. 
     In  FIG. 79 , symbol arrays in free games triggered by the base game with the five symbol bets are shown. The WILD symbols  505  are arranged in positions of “0”, “10”, “16” and “43” on the second reel, positions of “0”, “1”, and “2” on the third reel, and positions of “0”, “35”, and “50” on the fourth reel. In other words, a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the second reel is 12/59; a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the third reel is 100%; and a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the fourth reel is 9/59. 
     As described above, as compared with the base game with the five symbol bets, in the free games triggered by the base game with the five symbol bets, the WILD symbols  505  are set to be stopped on all positions on the third reel. Accordingly, each time the rearrangement in each of the free games is executed, the first drawing for the bonus game triggered by the stopping of the WILD symbols  505  is surely executed. In addition, as compared with the free games triggered by the base game with the one symbol bet, in the free games triggered by the base game with the five symbol bets, the symbol arrays are modified such that the probabilities, with each of which the WILD symbols  505  are rearranged, become high. 
     As described above, the symbol arrays in the free games are modified such that the probabilities, with each of which the WILD symbols  505  are stopped, become higher than in the base game. In addition, in both of the base game and the free games, the symbol arrays are modified such that in accordance with the increase in the bet number to be placed, the probabilities, with each of which the WILD symbols  505  are stopped, become high. Further, in the free games, the reel including the symbol array whose all positions are constituted of the WILD symbols  505  is provided so as to allow the WILD symbols  505  to be unfailingly stopped. 
     (Second Modification Example of Symbol Arrays in Base Game and Free Games) 
     In  FIG. 80 , symbol arrays in a base game with one symbol bet are shown. The WILD symbols  505  are arranged in a position of “11” on a second reel, positions of “15” and “45” on a third reel, and a position of “36” on a fourth reel. In other words, a probability with which the WILD symbols  505  are rearranged in a symbol display area  150  on the second reel is 3/68; a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the third reel is 6/64; and a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the fourth reel is 3/64. 
     In  FIG. 81 , symbol arrays in free games triggered by the base game with the one symbol bet are shown. The WILD symbols  505  are arranged in positions of “5”, “6”, and “7” on the second reel, positions of “14”, “15”, and “16” on the third reel, and positions of “3”, “4”, and “5” on the fourth reel. In other words, a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the second reel is 5/49; a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the third reel is 5/43; and a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the fourth reel is 5/42. 
     As described above, as compared with the base game with the one symbol bet, in the free games triggered by the base game with the one symbol bet, the symbol arrays are modified such that the probabilities, with each of which the WILD symbols  505  are stopped, become high. Further, because the WILD symbols  505  are consecutively arranged in the symbol arrays, there is a likelihood with which the WILD symbols  505  may be consecutively stopped on the same reel, thereby allowing a player to expect a high payout and an increase in a winning probability in the first drawing for a bonus game. 
     In  FIG. 82 , symbol arrays in a base game with five symbol bets are shown. The WILD symbols  505  are arranged in positions of “11”, “17”, and “44” on the second reel, positions of “3”, “15”, and “46” on the third reel, and positions of “36” and “51” on the fourth reel. In other words, a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the second reel is 9/60; a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the third reel is 9/60; and a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the fourth reel is 6/60. 
     As described above, as compared with the base game with the one symbol bet, in the base game with the five symbol bets, the symbol arrays are modified such that the probabilities, with each of which the WILD symbols  505  are rearranged, become high. 
     In  FIG. 83 , symbol arrays in free games triggered by the base game with the five symbol bets are shown. The WILD symbols  505  are arranged in position of “4”, “5”, “17”, “18”, “19”, “46”, and “47” on the second reel, positions of “3”, “4”, “28”, “29”, “30”, “53”, and “54” on the third reel, and positions of “32”, “33”, “34”, “51”, and “52” on the fourth reel. In other words, a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the second reel is 13/60; a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the third reel is 13/60; and a probability with which the WILD symbols  505  are rearranged in the symbol display area  150  on the fourth reel is 9/60. 
     As described above, as compared with the base game with the five symbol bets, in the free games triggered by the base game with the five symbol bets, the symbol arrays are modified such that the probabilities, with each of which the WILD symbols  505  are stopped, become high. Further, because there are the plurality of positions in which the WILD symbols  505  are consecutively arranged in the symbol arrays, there is a likelihood with which the WILD symbols  505  may be consecutively stopped on the same reel, thereby allowing a player to expect a high payout and an increase in a winning probability in the first drawing for the bonus game. In addition, as compared with the free games triggered by the base game with the one symbol bet, in the free games triggered by the base game with the five symbol bets, the symbol arrays are modified such that the probabilities, with each of which the WILD symbols  505  are rearranged, become high. 
     As described above, the symbol arrays in the free games are modified such that the probabilities, with each of which the WILD symbols  505  are stopped, become higher than in the base game. In addition, in both of the base game and the free games, the symbol arrays are modified such that in accordance with the increase in the bet number to be placed, the probabilities, with each of which the WILD symbols  505  are stopped, become high. Further, in the free games, in order to provide the likelihood with which the plurality of WILD symbols  505  are stopped on the same reel, the WILD symbols  505  are consecutively arranged in the symbol arrays. 
     (Coin Presentation) 
     As shown in  FIG. 84 , there is a case where coin presentation in which after the rearrangement on all pseudo reels  151  to  155 , coins  444  are falling down from above and an amount of the coins  444  accumulated in a lower portion is changed is performed. The coin presentation is performed at four times, and the display on a screen is changed in five stages. Specifically, an initial display in the first stage is changed to a display in the second stage, the display in the second stage is changed to a display in the third display, the display in the third display is changed to a display in the fourth stage, the display in the fourth stage is changed to a display in the fifth stage, and after passing through the changes at four times, the final screen is displayed. 
       FIG. 85  is a coin presentation assignment table. Each of the changes is executed when a number of games which have been played has reached a number of games which is previously determined based on the coin presentation assignment table and a winning probability in a bonus game. Specifically, a method of calculating the number of games to determine timing at which the coin presentation using the coin presentation assignment table is performed will be described. First, any one is selected from (A) to (C) in the coin presentation assignment table. The selection of each of (A) to (C) is conducted by a drawing with an equal probability. In the coin presentation assignment table, in each column X, percentages at which the coin presentation is executed are stored. For example, in a case of (A), with the whole being 100%, each time 25% has passed, the coin presentation is executed. Here, as the whole being 100%, a theoretical number of games, which is calculated from a winning probability in the bonus game, is assumed. For example, when a winning probability in the bonus game is 1/400, a number of games to reach the bonus game is assumed to be 400. 
     In the coin presentation assignment table, in each column Y, each value obtained by dividing the total of the values in the each X column (that is, 100) by each value in the each X column is stored. A value obtained by dividing the number of games by this value in the column Y is a number of games to reach a game in which the next coin presentation is performed. For example, in the case of (A), in the 100th game from triggering of the bonus game, the coin presentation is executed. In each of the 200th game, the 300th game, and the 400th game, the coin presentation is executed. In other words, each count of the number of games, which is reset by the triggering of the bonus game is stored in a memory. 
     It is to be noted that when after the execution of the coin presentation in the fifth stage, the bonus game is not triggered, a drawing may be conducted each time the WILD symbols  505  are stopped, and further, the coin presentation may be executed. For example, a drawing to determine whether or not the coin presentation is won may conducted with a probability of 20%. It is to be noted that no increase and decrease in the amount of the coins  444  accumulated in the lower portion may be made. As described above, the coin presentation is repeatedly conducted up to when the bonus game is triggered, thereby allowing a player to have a sense of expectation to the bonus game. 
     (Presentation Upon Concurrent Winning) 
     As described above, the bonus game is triggered by each of the WILD symbol drawing and the top symbol drawing. Since in the base game, both of the WILD symbol drawing and the top symbol drawing are executed, there is a likelihood with which concurrent winning in the WILD symbol drawing and the top symbol drawing occurs. Upon the concurrent winning, two bonus games are executed, and between the first bonus game and the second bonus game, concurrent winning presentation is conducted. This concurrent winning presentation will be described. 
     First, the first bonus game is executed, and a result is displayed. Thereafter, on a lower image display panel  141 , the screen is returned to a screen in which symbols  501 , in a base game in which the bonus game has been triggered, have been rearranged in a symbol display area  150 . At this time, the amount of coins  444  accumulated in the above-described coin presentation is reset to an initial amount in the first stage. 
     As shown in  FIG. 86 , thereafter, an animation in which coins  445  are falling down from an upper portion of the symbol display area  150  on the lower image display panel  141  toward right and left is reproduced. 
     Further, as shown in  FIG. 87 , an animation in which coins  446  are falling down from the upper portion of the symbol display area  150  on the lower image display panel  141  toward a central portion thereof is reproduced. Then, the second bonus game is executed. 
     (Bet/Start-Check Process) 
     With reference to  FIG. 88 , a bet process will be described. 
     A CPU  71  determines whether or not credit data has been received from a PTS terminal  700  (S 1041 ). The transmission of the credit data from the PTS terminal  700  to the CPU  71  is conducted when an IC card is inserted into a card insertion slot and when a bill entry  22  has accepted legitimate bills. 
     When the CPU  71  determines that the credit data has been received (S 1041 : YES), an amount indicated by the credit data is added to a value stored in a credit number storage region of a RAM  73  (S 1042 ). 
     After S 1042  or when the CPU  71  determined that the credit data has not been received at S 1041  (S 1041 : NO), the CPU  71  determines whether or not a value stored in the credit number storage region is less than a unit bet including 0 (S 1043 ). When the CPU  71  determines that the value stored in the credit number storage region is not less than the unit bet (S 1043 : NO), the CPU  71  permits the acceptance of operation of any of BET buttons (a 1-BET button  34 , a 2-BET button  35 , a 3-BET button  36 , a 4-BET button  37 , and a 5-BET button  38 ) (S 1044 ). 
     Next, the CPU  71  determines whether or not the operation of any of the BET buttons has been detected (S 1045 ). When the pressing-down of any of the BET buttons by a player has been detected by any of BET switches (a 1-BET switch  34 S, a 2-BET switch  35 S, a 3-BET switch  36 S, a 4-BET switch  37 S, and a 5-BET switch  38 S), based on the kind of the pressed BET button, the CPU  71  performs addition to a value stored in a BET number storage region provided in the RAM  73  and subtracts the consumed credit number from the value stored in the credit number storage region (S 1046 ). 
     When the CPU  71  determines that a value stored in the BET number storage region is a maximum (S 1047 : YES), the CPU  71  prohibits updating of the value stored in the BET number storage region (S 1048 ). After S 1048  or when the CPU  71  determines that the value stored in the BET number storage region is not the maximum at S 1047  (S 1047 : NO), the CPU  71  permits the acceptance of operation of a SPIN button  46  (S 1049 ). 
     After S 1049 , when the CPU  71  determines at S 1045  that the operation of any of the BET buttons has not been detected (S 1045 ), or when the CPU  71  determines at S 1043  that the value stored in the credit number storage region is not less than the unit bet (S 1043 : YES), the CPU  71  determines whether or not the operation of the SPIN button  46  has been detected (S 1050 ). When the CPU  71  determines that the operation of the SPIN button  46  has not been detected (S 1050 : NO), the CPU  71  returns to the process at S 1041 . 
     On the other hand, when the CPU  71  determines that the operation of the SPIN button  46  has been detected (S 1050 : YES), the CPU  71  executes a progressive-jackpot-related process which is the above-described bonus-game-related process (S 1051 ). In this process, a part of the bet amount bet in the base game is calculated as a value to be incremented for each of the four kinds of progressive jackpot payouts (bonus ranks: GRAND, MAJOR, MINOR, and MINI) and is used to update each of the four kinds of progressive jackpots stored in a progressive payout storage region provided in the RAM  73 . One round of the bet process is finished as described above, and thereafter, the processes at S 1041  to S 1051  are repeatedly executed. 
     It is to be noted that the progressive-jackpot-related process at S 1051  includes the display control process of the bonuses, the free game execution process, and the bonus game execution process described in the present embodiment. 
     (Display Presentation of Bonus Game) 
     On a slot machine  10  according to the above-described embodiment, for example, display presentation as described below is executed on a lower image display panel  141  and a middle image display panel  142 . 
     Rank images of bonuses, each of which is likely to be obtained in accordance with a bet amount are displayed on a display part of the middle image display panel  142 . In other words, as shown in  FIG. 3 , images of GRAND, MAJOR, MINOR, and MINI and payout amounts thereof are displayed. However, only a display area in which a name and a payout amount of GRAND are displayed is displayed in gray by effects. In other words, the GRAND rank as one of the ranks is made to be deactivated and the payout (a jackpot amount: $8,888.90) cannot be obtained, and the MAJOR, MINOR, and MINT ranks as the other ranks are made to be activated, and each of the payouts (jackpot amounts: $1,888.90, $38.90, and $18.90) is likely to be obtained. 
     Here, when a player presses two buttons in combination, one of which is a PLAY 68 CREDITS button  43  or a PLAY 88 CREDITS button  44  selected from among five kinds of credit buttons  40  to  44 , with which credits are bet and the credits are used as a base of a large quantity in a bet number, and the other of which is any of a 1-BET button  34 , a 2-BET button  35 , a 3-BET button  36 , a 4-BET button  37 , and a 5-BET button  38 , as shown in  FIG. 89 , the display area of the GRAND rank which is displayed in gray, indicating that the GRAND rank is deactivated, is modified to be in an activated state which is a normal state (first state). 
     Immediately after pressing any of the BET buttons, in a bonus/free counter/message area  399  of the lower image display panel  141 , display presentation is executed. 
     For example, in the bonus/free counter/message area  399 , a message “Reals have an increased number” and a BAT symbol  503   e  and a GOURD symbol  503   d  whose numbers are increased are moving together from left to right and as shown in  FIG. 90 , all of the message and symbols are stopped after the displaying and are displayed in a blinking manner. 
     Thereafter, display presentation in association with the addition of the special symbols is executed. Executed is the display presentation in which a frog displayed on a lower side of a central portion of the middle image display panel  142  croaks at several times while opening and closing the mouth. The croaking sound is outputted from a speaker device. Concurrently, symbol arrays  170  in a symbol display area  150  of the lower image display panel  141  are displayed in a varying manner and thereafter, symbols  501  to  504  are rearranged in the symbol display area  150  of the lower image display panel  141 . At this time, in association with the increase in the bet number, which is made by selecting either of the above-mentioned two credit buttons  43  and  44 , percentages of the numbers of special symbols  503  and  504  to the number of all symbols  501  in the plurality of symbol arrays  170  are increased, as compared with percentages thereof in a base game. In the present embodiment, the numbers of BAT symbols  503   e  and GOURD symbols  503   d  are increased as indicated in the bonus/free counter/message area  399 . 
     Upon the rearrangement of the symbols  501  to  504  in the symbol display area  150  of the lower image display panel  141 , as shown in  FIG. 90 , executed is display presentation in which a plurality of coins  446  are falling down from an upper portion of the middle image display panel  142  together with outputting of sound effects and a plurality of coins  445  are falling down from an upper portion of the lower image display panel  141  toward portions on both right and left sides thereof together with the outputting of sound effects, with the symbol arrays sandwiched between the falling down coins  445  on the right and left sides. Further, in the payout tables, among the plurality of kinds of payout tables displayed in the first payout table  1431  and the second payout table  1432 , the payout tables of the BAT symbols  503   e  and the GOURD symbols  503   d  as the special symbols whose numbers are increased are blinking. Accordingly, the cells  28  of the symbol display area  150 , which include the BAT symbols  503   e  and the GOURD symbols  503   d  whose numbers are increased in accordance with the bet number, the bonus/free counter/message area  399 , and the payout tables are concurrently blinking. 
     (Modification Example of Display Control Process in Bonus Game) 
     (1) Although in the above-described embodiment, the gray layer is superimposed on the whole of the display part  142  at S 1070  in the flowchart shown in  FIG. 1 , the present invention may be embodied as described below. For example, the gray layer superimposed on character areas (rank names and payout amounts) of the bonus ranks to indicate the deactivation with which the payouts cannot be obtained is removed, and all of the bonus ranks displayed in the display part  142  may be set to be in a normal state (first display state) which is a lighting-up state (activated state). 
     In this configuration, all of the bonus ranks displayed in the display part  142  are activated, and a player is likely to obtain each of the payouts of all of the bonus ranks. Accordingly, a player playing a game or other player deems that a high amount of a bonus payout is likely to be obtained on said gaming machine and continues to play the game or newly starts a game. Accordingly, an operation rate of said gaming machine is enhanced. 
     However, the present invention does not exclude that in the standby state which is a non-play state, all of the bonus ranks displayed in the display part  142  are displayed in the state in which it is difficult to visually recognize all of the bonus ranks. 
     (2) The display modification in the display part  142  at S 1070  in the flowchart shown in  FIG. 1  in the above-described embodiment may be configured as described below. For example, the total area of the display area or display areas in the first state, which are activated so as to indicate that each of the payouts is likely to be obtained, and the total area of the display area or display areas in the second state, which are deactivated so as not to indicate that each of the payouts cannot be obtained, are compared, and in consideration of faster rendering processing and a smaller processing load, the superimposition of the gray layer may be conducted for the display area or display areas in either of the first state and the second state. 
     For example, when among the four kinds of bonus ranks, only MINI whose payout amount is minimum is displayed in the first state and is activated, the total area displaying MINI is smaller than the total area of the display areas of the other bonus ranks which are deactivated. Therefore, the gray layer is superimposed in the display area of said MINI. Alternatively, when only GRAND whose payout amount is maximum is displayed in the second state and is deactivated, the total area of the display area of said GRAND is smaller than the total area of the display area of the three kinds of the other bonus ranks. Therefore, the gray layer superimposed in the display area of said GRAND may be removed. 
     In addition, as another embodiment, an illuminance surrounding said slot machine  10  is detected by an illuminance sensor, the detected illuminance is compared with a reference value of a predetermined illuminance, all of the display areas of the bonus ranks on the display part  142  are modified to be in either of the first state or the second state such that the illuminance surrounding said slot machine  10  approaches the reference value, and in addition thereto, a luminance is adjusted. Here, the reference value of the illuminance is appropriately set, for example, to a degree that staff and customers in a hall in which the slot machines  10  are installed easily recognize the surrounding situation. 
     By employing the above-described configuration, since an intensity of light irradiated from the whole apparatus by LEDs used for decoration and the like is heightened, luminances of liquid crystal display devices are appropriately reduced and the illuminance surrounding the slot machine  10  is thereby adjusted, thus allowing a power consumption of the slot machine  10  to be reduced. Accordingly, the power consumption of the slot machine  10  is reduced, thereby a profit of an administrator of the slot machines  10  to be enhanced. 
     It is to be noted that this specification also discloses the invention of a gaming machine as described below. 
     (Outline of Configuration of Gaming Machine) 
     Although in the above-described embodiment, as the gaming machine, the slot machine  10  is exemplified, the present invention is not limited thereto. For example, the gaming machine according to the present invention may be a communication terminal such as a personal computer, a smartphone, and a tablet in which a game program (application) of the slot machine  10  is installed, thereby allowing a game to be played. 
     In addition, as shown in  FIG. 92 , the present invention may be a gaming system constructed by connecting communication terminals  801  such as a plurality of personal computers  801   a , a tablet  801   b , and a smartphone  801   c  via a network to a server apparatus  800 . Hereinafter, a configuration of the gaming system will be described 
     (Configuration of Communication Terminal) 
     As shown in  FIG. 93 , each of the communication terminals  801  includes a communication part  803 , an input part  805 , a first storage part  807 , a second storage part  809 , a display part  811 , a display control part  813 , a control part  815 , and the like. 
     The communication part  803  is a part for communicating with a base station within the network and is constituted of a communication apparatus (for example, a communication module or the like for a wired LAN, a wireless LAN, and a mobile phone communication) for a wired communication and a wireless communication, or the like. 
     The input part  805  varies depending on a kind of the communication terminal  801 . For example, an input part  805  of the personal computer  801   a  is mainly a physical keyboard and a mouse. Since a main body of each of the smartphone  801   c  and the tablet  801   b  has no physical keyboard, a user interface displayed on a liquid crystal touch panel which is the display part  811  functions as an input part. As the input part  805  of the smartphone  801   c  or the like which does not has any keyboard externally connected, a keyboard part displayed in a liquid crystal screen may be uplifted and be formed as a physical keyboard. 
     The first storage part  807  is constituted of a silicon disk, a hard disk, or the like. In said first storage part  807 , an operating system of each of the communication terminals  801 , applications of games and the like, pieces of management information required to use the system and the applications such as an ID, a password, and a mail address of an owner of said communication terminal  801  are stored. 
     In the second storage part  809 , the pieces of information (the ID, the password, and the like) inputted from the input part  805  are temporarily stored and the pieces of information read out from the first storage part  807  are also stored. 
     The display part  811  is constituted of a liquid crystal touch panel, a CRT, or the like. In addition, on the liquid crystal touch panel, as shown in  FIG. 94 , bonus ranks, symbol arrays, and a control panel  30  are displayed in upper, middle, and lower rows. The bonus ranks in the upper row has the same configuration of display images as the configuration of display images displayed on a middle image display panel  142  of a slot machine  10 . In addition, the symbol arrays in the middle row has the same configuration of a display image as the configuration of the display image displayed on a lower image display panel  141  of the slot machine  10 . Further, in the lower row, a user interface which has the same configuration of shapes and arrangement of BET buttons, credit buttons, and a SPIN button as the configuration of the slot machine  10  and allows touch-operation is displayed. 
     The display control part  813  controls image displays on the display  811 , display presentation, and the like in accordance with instructions of a CPU which is the control part  815 . 
     The control part  815  comprehensively controls the communication terminal  801  and conducts a variety of processes based on pieces of information transmitted to and received from the server apparatus  800  which is connected via the network through the communication therewith. The specific processes by said control part  815  will be described later. 
     (Configuration of Server Apparatus) 
     The server apparatus  800  includes, a communication part  821 , an input part  823 , a first storage part  825 , a second storage part  827 , a display part  829 , a control part  831 , and the like. 
     The communication part  821  is a part for communicating with a base station within a network and is mainly constituted of a wired LAN which allows large-capacity communication. 
     The input part  823  is a keyboard externally connected to the server apparatus. It is to be noted that a liquid crystal touch panel may be used as the display part  831 , and a user interface displayed on said liquid crystal touch panel may be caused to function as the input part. 
     The first storage part  825  is constituted of a silicon disk, a hard disk, or the like. In said first storage part  825 , an operating system, applications of a plurality of kinds of games and the like for downloading, an ID and a password of an administrator, personal information (management information) of a user who has permitted communication connection with said server apparatus  800  such as an ID, a password, a mail address, a registered name, and the like are stored in a storage table for database. 
     In the second storage part  827 , pieces of information inputted from the input part  823  and an ID and a password of a user connected through the communication are temporarily stored and a variety of pieces of information read out from the first storage part  825  are also stored. 
     The display part  829  appropriately displays pieces of information such as operating states and maintenance of the server apparatus. 
     The control part  831  comprehensively controls the server apparatus  800  and conducts a variety of processes based on pieces of information transmitted to and received from each of the communication terminals  801  which is connected via the network through interactive communication. The processes by said control part  831  will be described later. 
     (Credit Purchase Process) 
     In the present embodiment, a case where a game application for a slot machine, which allows the same game (including a base game and a bonus game) as that played on the slot machine  10  described in details in the above-described embodiment, is previously installed in a communication terminal  801  will be described as an example. Accordingly, a credit (a virtual currency such as points) purchase process in a case where a credit is less than a unit bet upon determining a condition “credit&lt;unit bet?” in a base game execution process shown in  FIG. 41  and a bonus game execution process shown in  FIG. 1  will be described. 
     It is to be noted that in said game application, a credit which is equivalent to a bet amount which can be bet at a predetermined number of times per day is automatically provided. In other words, a free game can be played at up to a predetermined number of times. In addition, upon downloading and installing the game application, by accessing a store on the Internet uploading said application or a home page of a game management company, personal information required to download said application (terminal management information such as an ID, a password, and a mail address for the registration in the communication terminal) is inputted from an input part  805  of the communication terminal  801  and is thereby previously registered. 
     By clicking an icon of a game displayed on a display part  811  of the communication terminal  801 , a game is started (S 1100 ). In association with the start of said game, the management information such as the ID of the communication terminal  801  is automatically transmitted to a server apparatus  800 . The server apparatus  800  conducts a cross-check process between the terminal management information transmitted from the communication terminal  801  and terminal management information stored in a first storage part  825  (S 1105 ). The server apparatus  800  transmits a result of the cross-check to the communication terminal  801 . When the communication terminal  801  is authenticated, a CPU which is a control part  815  determines whether or not a credit number is less than a unit bet (S 1110 ). 
     When the credit number is less than the unit bet (S 1110 : YES), the control part  815  of the communication terminal  801  causes the display part  811  to display a message on whether or not a credit (points) is purchased (S 1120 ). When said credit is purchased (S 1120 : YES), the previously registered terminal management information such as an ID and a password of an owner of the communication terminal  801  is inputted onto an input screen displayed on the display part  811 , and said inputted information is transmitted from said communication terminal  801  to the server apparatus  800  of the game management company (S 1130 ). A control part  831  of said server apparatus  800  executes a cross-check process for the registered information of the owner (S 1135 ). 
     Based on a result of the cross-check from the server apparatus  800 , the control part  815  of the communication terminal  801  executes the next determination process (S 1140 ). When the terminal management information and the registered information match each other (S 1140 : YES), the communication terminal  801  receives an instruction signal, from the server apparatus  800 , which causes an input screen for displaying settlement options and a money amount to be displayed on the communication terminal  801 . 
     When the terminal management information and the registered information do not match each other (S 1140 : NO), the communication terminal  801  receives an instruction signal, from the server apparatus  800 , which causes the display part  811  to display a message on whether the terminal information is inputted again (S 1180 : YES) or the process is finished (S 1180 : NO) (S 1180 ). 
     When the terminal management information and the registered information match each other, on the communication terminal  801 , one of the settlement options and a money amount are inputted onto the input screen displayed on the display part  811  and are transmitted therefrom to the server apparatus  800  (S 1150 ). Also upon inputting one of the settlement options, the server apparatus  800  inputs management information such as an ID and a password of a credit card, transmitted from the communication terminal  801 , or a pass code of a prepaid card and executes a cross-check process therefor (S 1155 ). 
     When the information inputted from the input screen of the communication terminal  801  does not match the previously registered information stored in the first storage part  825  of the server apparatus  800  (S 1160 : NO), in order to reject the acceptance of the credit purchase, the communication terminal  801  receives an instruction signal, from the server apparatus  800 , which displays a message of an input error for the inputted information or displays a message on whether or not the purchase process is finished, and a selection button. A user arbitrarily selects said selection button from the display part  811  of the communication terminal  801 , whereby the control part  815  switches the display part  811  to either of an initial screen displayed upon staring the game or a credit purchase screen to be displayed (S 1190 ). 
     When the credit purchase is authorized by the server apparatus  800  (S 1160 : YES), a credit is added to a value stored in a second storage part  809  of the communication terminal  801  (S 1170 ), processes for executing a base game or a bonus game at S 1200  to S 1230  is executed. It is to be noted that as the processes at S 1200  to S 1230 , the process at S 12  and the subsequent steps shown in  FIG. 41  and the process at S 1062  and the subsequent steps shown in  FIG. 1  are appropriately executed. It is to be noted that results occurring during the game are consecutively transmitted from the communication terminal  801  to the server apparatus  800 , and the control part  831  of the server apparatus  800  is monitoring the states of the communication terminal  801  during the game. 
     (Display Control Process of Bonus Ranks in Gaming System) 
     Display control in said communication terminal  801  is the same as that in the above-described slot machine  10 . For example, as shown in  FIG. 96 , in a base game, a rank/ranks which is/are activated and whose payout/payouts is/are likely to be obtained is/are displayed in a normal display (lighting-up display) state which is a first state and a rank/ranks which is/are deactivated and whose payout/payouts cannot be obtained is/are displayed in a second state in which a gray layer is superimposed on the deactivated rank/ranks. 
     In addition, when a credit number becomes less than a unit bet number and a credit is not purchased within a predetermined time period, as shown in  FIG. 97 , the gray layer is superimposed on all of the bonus ranks. This configuration is opposite to the above-described configuration of the display control in the slot machine. However, in particular, as in this gaming system, when a game is played by using a mobile terminal  801  which a player has, a standby state display has little effect for inducing the next player. Therefore, this configuration is made opposite to the above-described configuration of the display control in the slot machine. In addition, when the credit number becomes less than the unit bet, the display may be controlled by a CPU  815  as a control part of the gaming system such that all of the bonus ranks are activated and the gray layer is not superimposed. 
     In the above-described gaming system, no game program may be installed in the communication terminal  801  and the game program may be downloaded from a server apparatus  800  to the communication terminal  801  each time a game is started after authenticating the ID and the like. The game is played and drawing results during playing the game and display presentation data may be appropriately transmitted from the server apparatus  800  to the communication terminal. 
     In addition, in the above-description in details, in order to facilitate understanding of the present invention, the features are mainly described. The present invention is not limited to the embodiments described above in details and is applicable to other embodiment, and a scope of application thereof is diverse. In addition, the terms and wording used in the present specification are used to accurately describe the present invention and are not used to limit the interpretation of the present invention. In addition, from the concept of the invention described in the present specification, it is considered to be easy for a person skilled in the art to arrive at other configuration, a system, a method, and the like embraced within the concept of the present invention. Accordingly, in the description in the appended claims, an equivalent constitution must be taken to be embraced within the scope not departing from the scope of a technical idea of the present invention. In addition, the purpose of the abstract is to make it possible that the Patent Office, general public institutions, and technical personnel and the like who do not have a thorough knowledge of patents, legal terms, or technical terms and are involved in the technical field that the present invention pertains can make prompt determination by conducting a simple search on the technical contents and essence of the present application. Accordingly, it is not intended that the abstract limits the scope of the invention which should be evaluated by the description in the scope of claims. In addition, in order to sufficiently understand the object of the present invention and the particular effects of the present invention, it is desirable that the present invention is interpreted by sufficiently taking into consideration the documents and the like which have already been disclosed. 
     In the above description in details, processes executed by a computer are included. The above description and expressions are given for the purpose of allowing a person skilled in the art to most efficiently understand the prevent invention. In the present specification, each step used to derive one result should be understood as a process which is not self contradictory. In addition, at each step, transmission and reception of an electrical or magnetic signal and recoding thereof are conducted. In a process at each step, such a signal is represented by bits, a value, a symbol, characters, a term, a numeral, and the like. However, it should be kept in mind that these are used simply because they are convenient to facilitate understanding. In addition, there may be a case when a process at each step is described with expressions which are common to those describing human behavior. In principle, however, each process described in the present specification is executed by a variety of devices. In addition, other configuration required to execute each step is made obvious by the above description. 
     REFERENCE SIGNS LIST 
     
         
         
           
               10  slot machine 
               30  control panel 
               69  touch panel 
               141  lower image display panel 
               142  middle image display panel 
               200  center controller 
               300  gaming machine 
               501  symbols