Abstract:
A video gaming device having a plurality of indicia-bearing spinning reels in a first set of reels and a second set of reels is disclosed. A determination is made as to whether the display of the indicia of the plurality of spinning reels in the first and second sets of reels are winning outcomes. Award-multiplier indicia of a first shared spinning base game award-multiplier reel is positioned between the first and second set of reels. The base game award-multiplier indicia modifies the winning outcome on the first set of reels, modifies the winning outcome on the second set of reels, includes a secondary game trigger symbol, forms a contiguous set of reels having a common axis of rotation with the first and second set of reels, or combinations thereof.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application is a continuation of U.S. application Ser. No. 13/787,560, filed Mar. 6, 2013, which is a continuation of U.S. application Ser. No. 13/308,506, filed Nov. 30, 2011, now U.S. Pat. No. 8,439,743, issued May 14, 2013, which is a continuation of U.S. application Ser. No. 11/463,868, filed Aug. 10, 2006, now U.S. Pat. No. 8,075,389, issued Dec. 13, 2011, which is a continuation-in-part of U.S. application Ser. No. 10/957,007, filed Oct. 1, 2004, now U.S. Pat. No. 7,377,850, issued May 27, 2008, which are herein incorporated by reference in their entirety. 
     
    
     COPYRIGHT NOTICE 
       [0002]    A portion of the disclosure of this patent document contains material that is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all copyright rights whatsoever. 
       FIELD OF TECHNOLOGY 
       [0003]    Various embodiments are directed to a reel spinning game having one or more shared award-modifier reels acting to enhance any winning outcomes in a reel spinning game. 
       BACKGROUND 
       [0004]    A standard slot machine includes between three and five rotatable reels for use in game play. On the periphery of each reel are gaming symbols, such as assorted fruit, numbers, and/or bar symbols. The reels are caused to spin until each reel reaches a resting position. The success or failure of the game is then determined by comparing the combination of reel symbols that are displayed when the reels are in their resting positions. 
         [0005]    To add interest to the game, many different types of slot machines have developed over time. For example, in some slot machines the display windows show more than one adjacent symbol on each reel, thereby allowing betting involving multiple rows. Other types of slot machines have also been developed to increase player interest that includes “second chance” games. Typically, “second chance” games try to maintain player interest from a first game segment to a second game segment by providing the player with another opportunity to win. 
         [0006]    Additionally, a variety of bonus games have been produced in which a slot machine pays out a final award by adding a single value to, or multiplying a basic slot machine pay award. One such game is a 4-reel slot machine. In such a game, the first three reels embody a basic slot machine game with base pays published on a pay table. For example, 3 bars might pay 10 credits. The 4th reel contains bonus actions that are applied to any base pay if a valid base pay and a bonus action appears on the pay line at the same time. Thus, in one example, the base pay might be multiplied by 10, have 100 added to its value, or respin a random number of times, thereby accumulating some random multiple of the base pay. 
         [0007]    Others have produced bonus devices such as secondary wheel games or top box games to provide a bonus game that produces a payment or adds to a base pay on the basic slot machine. These add-on games are more complicated for players to understand and more expensive to produce. 
         [0008]    However, there is a continuing need for additional slot machine variants that provide a player with enhanced excitement and diversity of game play, without departing so far from the original slot gaming concept that player comfort is lost. Further, there is a continuing need for a gaming machine that provides increased player excitement due to the visual entertainment that occurs specifically in response to the player&#39;s actions. Additionally, there is a continuing need for a gaming machine that provides and maintains a high rate of game play speed so that the number of games played is not substantially reduced by the variation from the original slot gaming concept. Accordingly, those skilled in the art have long recognized the need for a gaming machine that addresses these issues. 
       SUMMARY 
       [0009]    Briefly, and in general terms, a gaming machine is disclosed having indicia of a plurality of spinning reels in a first set of reels and indicia of a plurality of spinning reels in a second set of reels. A determination is made as to whether an outcome of the indicia of the plurality of spinning reels in the first set of reels is a winning outcome. Additionally, a determination is made as to whether an outcome of the indicia of the plurality of spinning reels in a second set of reels is a winning outcome. Continuing, award-multiplier indicia of a first shared spinning base game award-multiplier reel is positioned adjacent to the first and/or second set of reels. The base game award-multiplier reel modifies the winning outcome on the first set of reels, modifies the winning outcome on the second set of reels, includes a secondary game trigger symbol, forms a contiguous set of reels having a common axis of rotation with the first and second set of reels, or combinations thereof. 
         [0010]    In accordance with another aspect of an embodiment, a gaming machine is disclosed including a game display for presenting a game including a first set of reels, a shared base game award-multiplier reel adjacent to the first set of reels, and a second set of reels adjacent to the shared base game award-multiplier reel. The shared base game award-multiplier reel enhances any winning outcomes in the first and/or second set of reels, includes a secondary game trigger symbol, forms a contiguous set of reels having a common axis of rotation with the first and second set of reels, or combinations thereof. One embodiment of the gaming machine also includes an input device that allows a player to adjust the location of the shared base game award-multiplier reel by selecting a location corresponding to one reel of the first or second set of reels. Continuing, an embodiment of the gaming machine also includes a game controller in communication with the game display in which the game controller manages the game. 
         [0011]    In accordance with another embodiment, the gaming machine includes: a game display, an input device, and a game controller. The game display presents a game including a first set of reels, a shared base game award-multiplier reel initially adjacent to the first set of reels, and a second set of reels adjacent to the first set of reels and/or the shared base game award-multiplier reel. The shared base game award-multiplier reel enhances any winning outcomes in the first and/or second set of reels, includes a secondary game trigger symbol, forms a contiguous set of reels having a common axis of rotation with the first and second set of reels, or combinations thereof. The input device allows a player to adjust the location of the shared base game award-multiplier reel by selecting a location corresponding to one reel of the first or second set of reels. The game controller communicates with the game display and the player input device. Further, the game controller manages the game and alters a pay table in response to the location of the shared base game award-multiplier reel with respect to the first and second set of reels. 
         [0012]    Other features and advantages of the disclosed embodiments will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate by way of example, the features of the disclosed embodiments. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWING 
         [0013]      FIG. 1  illustrates a front view of an embodiment of a multiple bonus modifier game having a base game and two or more base award modifiers operating independently or simultaneously of each other; 
           [0014]      FIG. 2  illustrates a front view of the embodiment of a multiple bonus modifier game having reels in a base game and a reel in a second base award modifier spinning about a substantially horizontal axis, while a reel in a first base award modifier spins about a substantially vertical axis; 
           [0015]      FIG. 3  illustrates a front view of the embodiment of a multiple bonus modifier game having reels in a base game and a reel in a second base award modifier spinning about a substantially horizontal axis, while a reel in a first base award modifier spins about a substantially vertical axis; 
           [0016]      FIG. 4  illustrates a screen shot of one embodiment of a shared award-modifier game having a winning event in a first base game where a shared award-modifier reel enhances the award of the first base game; 
           [0017]      FIG. 5  illustrates a screen shot of another embodiment of a shared award-modifier game having a winning event in a second base game where a shared award-modifier reel enhances the award of the second base game; 
           [0018]      FIG. 6  illustrates a screen shot of yet another embodiment of a shared award-modifier game having winning events in a first and second base game wherein a shared award-modifier reel enhances the awards of the first and second base games; 
           [0019]      FIG. 7  illustrates a screen shot of one embodiment of a shared award-modifier game having two shared award-modifier reels; 
           [0020]      FIG. 8  illustrates a screen shot of another embodiment of a shared award-modifier game; 
           [0021]      FIG. 9  illustrates a screen shot of yet another embodiment of a shared award-modifier game; 
           [0022]      FIG. 10A  illustrates a screen shot of another embodiment of a game having a movable shared award-modifier reel; 
           [0023]      FIG. 10B  illustrates a screen shot of  FIG. 10A  after the shared award-modifier reel is moved; and 
           [0024]      FIG. 11  illustrates one embodiment of a gaming system for use with an embodiment of a gaming machine having a shared award-modifier reel. 
       
    
    
     DETAILED DESCRIPTION 
       [0025]    One embodiment of a gaming machine provides a player with the opportunity to play a base game in conjunction with two or more base award modifiers that operate independently or in conjunction with one another to modify a base game award. In this manner, player excitement is derived and heightened from the visual entertainment that occurs when the multiple base award modifiers act to increase the opportunities for a player to win, as well as the magnitude of those winnings. Referring now to the drawings, wherein like reference numerals denote like or corresponding parts throughout the drawings, and more particularly to  FIGS. 1-2 , there is shown a multiple bonus modifier game  10 . 
         [0026]    Referring now to  FIG. 1 , a multiple bonus modifier game  10  preferably includes a base game and two or more base award modifiers operating independently or simultaneously of each other (i.e., the two or more base award modifiers operate independently of each other or in conjunction with each other to modify a base game award). Specifically, the multiple bonus modifier game  10  comprises: a base game  20  that includes a plurality of spinning reels, a first base award modifier  30  that includes at least one spinning reel, and a second base award modifier  40  that includes at least one additional spinning reel. It will be appreciated by those of skill in the art that whenever spinning reels are described herein, any indicia of spinning reels may be used without departing from the scope of the disclosed embodiments. Such indicia of spinning reels include, by way of example only, and not by way of limitation, physical spinning reels, a video display of spinning reels, or other gaming presentations of spinning reels. 
         [0027]    Preferably, the plurality of reels in the base game  20  is spun (or appears to be spun in the case of video representation embodiments). The outcome of the spinning reels in the base game  20  defines a base game award  25 , if any (i.e., the outcome does not always produce an award). Additionally, the reel in the first base award modifier  30  is also spun. The outcome of the spinning reel in the first base award modifier  30  defines a first modifier award  35 , if any (i.e., the outcome does not always produce an award). The first modifier award adjusts the base game award. Further, the at least one additional reel in the second base award modifier  40  is also spun. The outcome of the additional spinning reel in the second base award modifier  40  defines a second modifier award  45 , if any (i.e., the outcome does not always produce an award). The second modifier award  45  (1) adjusts the combined base game award  25  and first modifier award  35  if both awards were given, (2) adjusts only the base game award  25  if only the base game award was given, and (3) adjusts only the first modifier award  35  if only the first modifier award was given. Thus, the first modifier award  35  and the second modifier award  45  operate independently or in conjunction with one another to modify a base game award  25 . 
         [0028]    As briefly described above, in an embodiment of the multiple bonus modifier game  10 , the two or more base award modifiers operate independently or simultaneously (in conjunction) with each other and the base award  25 . Operating “independently” in this context means that each award will stand independently, regardless of whether or not another award was won. Specifically, if a base game award  25  was won, a first modifier award  35  was won, and a second modifier award  45  was lost, the base game award  25  and the first modifier award  35  would be given. If a base game award  25  was won, a first modifier award  35  was lost, and a second modifier award  45  was won, the base game award  25  and second modifier award  45  would be given. Further, in some embodiments, if a base game award  25  was won, a first modifier award  35  was lost, and a second modifier award  45  was lost, the base game award  25  still would be given. Moreover, in other embodiments, if a base game award  25  was lost, a first modifier award  35  was won, and a second modifier award  45  was won, the first modifier award  35  and the second modifier award  45  would be given. 
         [0029]    In comparison, operating “simultaneously” or “in conjunction with” in this context means that each award can be given at the same time as another award is given. Specifically, if a base game award  25  was won, a first modifier award  35  was won, and a second modifier award  45  was won, the base game award  25  and the first modifier award  35  and the second modifier award  45  would all be given together in combination. Accordingly, in an embodiment of the multiple bonus modifier game  10 , if two bonus modifier awards (e.g., the first base award modifier  30  and the second base award modifier  40 ) appear on the payline  50  along with a valid base pay, both actions are applied to the base pay. For example, three bars pay out 10 credits in the base game  20 . Next, a “+10 credits” symbol is achieved on the fourth reel (i.e., first base award modifier  30 ). Finally, a “times 2” multiplier is achieved on the fifth reel (second base award modifier  40 ). All symbols lie on the payline  50 . The resulting pay is (10+10) “times 2” or 40 credits. Thus, the multiple bonus modifier game  10  is faster to play than a standard primary game with a “secondary” bonus. Furthermore, the machine is less expensive to produce. Moreover, the payouts are more exciting than a standard primary game with a “secondary” bonus. 
         [0030]    In an embodiment of the multiple bonus modifier game  10 , the outcome of the plurality of spinning reels in the base game  20 , the outcome of the at least one spinning reel in the first base award modifier  30 , and the outcome of the at least one additional spinning reel in the second base award modifier  40 , are all displayed along a payline  50 . Accordingly, in an embodiment, the first three reels depict the basic slot machine game  20  with the base pay published on a pay table. In one exemplary embodiment of the base game  20 , three bars pay out 10 credits. Continuing, in this embodiment, the fourth reel  30  and fifth reel  40  produce bonus actions (i.e., modifier awards  35  and  45 ) that are applied to a base game award  25 . In one such example, the base game award  25  is multiplied by 10, has 100 credits added to its value, or another similar modifier. 
         [0031]    Additionally, in one embodiment, the spinning reels in the base game  20  spin about a substantially horizontal axis, while at least one reel of the base award modifiers  30  and/or  40  spins about a substantially vertical axis (as shown in  FIG. 2 ). Further, in another embodiment, the spinning reels in the base game  20  spin about a substantially horizontal axis, while a wheel of the base award modifiers  30  and/or  40  spins in a top box game (as shown in  FIG. 3 ). Accordingly, in an embodiment of the multiple bonus modifier game  10 , the first base award modifier  30  and/or the second base award modifier  40  include a trigger on one of the reels that can be modified by the other bonus reel. Thus, in one exemplary embodiment, a “Monte Carlo style” bonus wheel could be triggered by a special symbol on the fourth reel (i.e., the first base award modifier) while an additional multiplier could appear on the fifth reel (i.e., the second base award modifier). 
         [0032]    Referring again to  FIG. 1 , in one embodiment of the multiple bonus modifier game  10 , any first modifier award  35  from the first base award modifier  30  is then added to any base game award  25  from the base game  20 . Additionally, in one embodiment, a first modifier award  35  from the first base award modifier  30  is awarded only if a (non-zero) base game award was given. However, in another embodiment, a first modifier award  35  from the first base award modifier  30  is awarded regardless of whether a base game award  25  was given. Moreover, in one embodiment, a first modifier award  35  from the first base award modifier  30  rewards a player with additional reel spins. In another embodiment, a second modifier award  45  from the second base award modifier  40  is a multiplier of the base pay award  25 , if any (i.e., the base pay award  25  is not zero), and the first modifier award  35 , if any (i.e., first modifier award  35  is not zero), in combination. 
         [0033]    In a “five coin” embodiment of the multiple bonus modifier game  10 , the base game  20  requires three coins to initiate base game play, the first base award modifier  30  requires a forth coin to initiate a first modifier play, and the second base award modifier  40  requires a fifth coin to initiate a second modifier play. Accordingly, the player “buys” these bonuses by paying for an extra coin for each of the bonus reels. Thus, in one embodiment of a “five coin” game, the first three coins purchase any base game award from the base game that may appear on reels  1 - 3 . The fourth coin purchases any bonuses that may appear on reel  4 . The fifth coin purchases any bonuses that may appear on reel  5 . In one embodiment of the multiple bonus modifier game, reel  4  is an “adder” bonus, and reel  5  is a “multiplier” bonus. Since multipliers are generally more powerful than adders, the player is encouraged to insert the 5th coin. 
         [0034]    In another embodiment of the multiple bonus modifier game  10 , it includes a base game  20 , a first base award modifier  30 , and a second base award modifier  40 , in which at least one of the base game  20 , first base award modifier  30 , and second base award modifier  40  does not include spinning reels. In all other respects this embodiment of the multiple bonus modifier game  10  resembles the embodiments discussed above. The gaming format utilized in this (at least partially non-spinning reel) multiple bonus modifier game  10  includes by way of example only, and not by way of limitation, poker, various other card games, and the like. It will be appreciated by those skilled in the art that other known gaming formats may also be utilized. 
         [0035]    In another embodiment of the multiple bonus modifier game  10 , at least one of the first modifier awards  35  from the first base award modifier  30  rewards a player with a nil adjustment. Correspondingly, at least one of the second modifier awards  45  from the second base award modifier  40  rewards a player with a nil adjustment. In this context, a “nil adjustment” is an “award” that does not alter the original base award  20  (e.g., adding zero to a base award, multiplying a base award times one, and the like). 
         [0036]    In still another embodiment of the multiple bonus modifier game  10 , at least one of the first modifier awards  35  from the first base award modifier  30  gives a player a negative adjustment. Correspondingly, at least one of the second modifier awards  45  from the second base award modifier  40  gives a player a negative adjustment. In this context, a “negative adjustment” is an “award” that negatively alters the original base award  20  (e.g., subtracting credits from a base award, multiplying a base award times a fraction, and the like). 
         [0037]    An embodiment of the multiple bonus modifier game  10  includes multiple bonus reels working independently and/or in conjunction with one another to modify a base game award. One embodiment utilizes a stepper-motor slot system with five spinning reels. However, as stated above, in another embodiment, the multiple bonus modifier game  10  is incorporated into a video slot machine having five or more reels. 
         [0038]    Another embodiment is directed to a game having a shared award-modifier reel. Generally, the game comprises a first base game having a plurality of reels, a second base game having a plurality of reels, and a shared award-modifier reel positioned between or adjacent to the reels of the first and second base games. During the play of the first or second base game, the shared award-modifier reel is spun. If an award-modifying symbol appears on the award-modifier reel, the award associated with the award-modifying symbol is applied to any winning outcome of the first and/or second base game. 
         [0039]    Referring now to  FIGS. 4-7 , the game comprises a first base game  100  having three reels  102 ,  104 , and  106 , a second base game  108  having three reels  110 ,  112 , and  114 , and a shared award-modifier reel  116  positioned between or adjacent to the reels of the first and second base games. As shown in  FIGS. 4-7 , the shared award-modifier reel  116  includes a border to distinguish the award-modifier reel from the reels  102 ,  104 ,  106 ,  110 ,  112 , and  114  of the first and second base games. Alternatively, the shared award-modifier reel (not shown) does not include a border. In another embodiment, the shared award-modifier reel (not shown) is larger than the reels of the first and second base. In yet another embodiment, the shared award-modifier reel (not shown) has a different background color, markings, or patterns to distinguish the shared award-modifier reel from the reels  102 ,  104 ,  106 ,  110 ,  112 , and  114  of the first and second base games  100  and  108 , respectively. 
         [0040]    Additionally, an award-enhancing symbol  118  is shown on the shared award-modifier reel  116 . The award-modifying symbol  118  may be a multiplier symbol (e.g., 2×, 3×, 4×, and the like), wild symbol, additional base game symbol, respin symbol, credit symbol (e.g., pay 10 credits, 100 credits, and the like), free game symbol, secondary game trigger symbol, tangible award symbol (e.g., tickets to shows, cars, jewelry, and the like), or a combination thereof. In other embodiments, sound effects, music, graphics, or animation are associated with or incorporated into the award-modifying symbol  118 . 
         [0041]    According to one embodiment, upon initiating a game, the shared award-modifier reel  116  and the reels  102 ,  104 ,  106 ,  110 ,  112 , and  114  associated with the first and/or second base games  100  and  108 , respectively are spun. Alternatively, the shared award-modifier reel  116  is spun after the reels  102 ,  104 ,  106 ,  110 ,  112 , and  114  of the first or second base game  100  and  108 , respectively are spun. The shared award-modifier reel  116  may be stopped before, after, or concurrently with the stoppage of the reels  102 ,  104 ,  106 ,  110 ,  112 , and  114  of the first and second base games  100  and  108 , respectively. In another embodiment, the shared award-modified reel  116  is spun once the reels of the first or second base game  100  and  108 , respectively have stopped. 
         [0042]    Winning outcomes for the first game  100  are determined by reading the pay lines on reels  102 ,  104 , and  106  from left to right. Winning outcomes for the second game  108  are determined by reading the pay lines on the reels  110 ,  112 , and  114  from right to left. However, either set of reels may be read from any appropriate direction. While the first and second games  100  and  108  are played independently, the first and second games share the award-modifier reel  116 . Accordingly, any award-modifier symbol  118  appearing on the award-modifier reel  116  may be applied to the winning outcome on pay lines in either or both the first and second base games  100  and  108 . 
         [0043]      FIG. 4  illustrates a screen shot of one possible game outcome where a winning outcome (as delineated by a pay line  120 ) is presented in the first game  100  and an award-modifier symbol  118  is also presented on the award-modifier reel  116 . The award associated with the award-modifying symbol  118  (i.e., the 2× multiplier) is then applied to the winning outcome. As a result, the winning outcome of 100 credits is multiplied by a factor of two for a payout of 200 credits. As shown in  FIG. 4 , the award-modifier symbol  118  appears in the center of the award-modifier reel  116  and not on the pay line associated with the first base game  100 , yet the award associated with the award-modifier symbol is still applied to the winning outcome of the first base game. That is, the presence of the award-modifier symbol  118  in the shared award-modifier reel  116  results in an enhancement of the winning outcome. However, in alternate embodiments, the award-modifier symbol  118  must appear on a pay line to be applied to a winning outcome in either the first or second base games  100  and  108 , respectively. While the screen shot of  FIG. 4  shows a single award-modifying symbol  118 , a plurality of award-modifying symbols may be shown on the award-modifier reel  116 . In one embodiment, more than one award-modifying symbol  118  is presented on the award-modifier reel  116 , the award-modifying symbol needs to appear on the same pay line as a winning outcome in the first or second base games  100  and  108 , respectively. Alternatively, the award-modifying symbols  118  need not be present on a winning pay line in order to enhance a winning outcome in the first or second base games  100  and  108 , respectively. 
         [0044]      FIG. 5  illustrates a screen shot of one possible game outcome for the second game  108 . A winning outcome is shown by a pay line  122  as the reels  110 ,  112 , and  114  are read from right to left. Additionally, an award-modifier symbol  118  is also presented on the shared award-modifier reel  116 . The award associated with the award-modifier symbol  118  (i.e., the 2× multiplier) is then applied to the winning outcome of the second game  108 . As a result, the winning outcome of 20 credits is multiplied by a factor of two for a payout of 40 credits.  FIG. 6  illustrates a screen shot that combines the game outcomes of  FIGS. 4 and 5 . That is, the winning outcomes of the first and second base games  100  and  108  may be shown approximately at the same time. Alternatively, the winning outcomes of the first and second base games  100  and  108  may be shown sequentially (as depicted in  FIGS. 4 and 5 ). 
         [0045]    As shown in  FIGS. 4-6 , the first and second games  100  and  108  are games that present a plurality of pay lines. According to one embodiment, the shared award-modifier reel  116  is spun only if the player places a wager on all the pay lines of the game. In another embodiment, the shared award-modifier reel  116  is spun if the player makes a maximum wager on at least one pay line. In alternate embodiment, the shared award-modifier reel  116  is spun regardless of the amount or number of wagers made by the player. 
         [0046]      FIG. 7  illustrates another embodiment of a game having a plurality of base games  130 ,  132 , and  134  that are separated by shared award-modifier reels  136  and  138 . As shown in  FIG. 7 , each game has three reels, but those skilled in the art will appreciate that any number of reels for each game is possible. For example, each game may have the same number of reels, different number of reels, or any combination thereof. 
         [0047]    Furthermore, the embodiment shown in  FIG. 7  is similar to the embodiment disclosed in  FIGS. 4-6  except that a second, shared award-modifier reel  138  is placed between the second base game  132  and the third base game  134 . Because the second base game  132  is positioned between two shared bonus reels  136  and  138 , the second base game may reference either or both the shared bonus reels. Accordingly, winning outcomes in the second base game  132  may be determined by reading the reels from left-to-right, right-to-left, in both directions, or any other appropriate direction. Furthermore, an award symbol appearing in either or both of the shared award-modifier reels  136  and  138  are applied to any winning outcome in the second base game. While the games  130 ,  132 , and  134  are referred to as the first, second, and third games, the use of the adjectives, first, second, and third, is not meant to be limiting. For example, a player&#39;s wagers may be applied to the first game, the third game, and then the second game. 
         [0048]      FIG. 8  illustrates yet another embodiment of a game having a base game  140  and shared award-modifier reels  142  and  144  on either side of the base game. As shown in  FIG. 8 , the base game  140  is a three reel game, but those skilled in the art will appreciate that any number of reels (e.g., 2, 4, 5, 6, 7, 9, or more reels) may be provided in the base game. Because the base game  140  is positioned between two shared award-modifier reels  142  and  144 , the base game may reference either or both of the shared award-modifier reels. Accordingly, winning outcomes in the base game  140  may be determined by reading the reels from left-to-right, right-to-left, in both directions, or any other appropriate direction. In an alternate embodiment, the player may elect to place both shared award-modifier reels  142  and  144  on one side of the base game  140 . That is, before game play begins, the player may select the location of the shared award-modifier reels  142  and  144  (i.e., left or right of the base game reels). 
         [0049]      FIG. 9  illustrates another embodiment of a game having first and second base games  150  and  152  and shared award-modifier reels  154  and  156  positioned between or adjacent to the first and second base games. Given the positioning of the award-modifier reels  154  and  156 , a winning outcome in either or both base games  150  and  152  may be enhanced by either one or both of the award-modifier reels  154  and  156 . For example, a winning outcome in the first base game  150  may be enhanced by an award-enhancing symbol in either of the first or second award-modifier reels  154  and  156 . If an award-enhancing symbol appears in both the award-modifier reels  154  and  156 , according to one embodiment, the winning outcome of a base game is enhanced sequentially. For example, a winning outcome paying 10 credits is doubled to 20 credits if a 2× multiplier symbol appears in the first award-modifier reel  154  and the enhanced award of 20 credits is further enhanced (e.g., tripled) to 60 credits if a 3× multiplier symbol appears in the second award-modifier reel  156 . Alternatively, the award-modifier symbols may be summed together and then applied to the winning outcome in the base game. Using the previous example, the 2× and 3× multipliers are summed together (to net a 5× multiplier) and then applied to the winning outcome of 10 credits to result in a 50-credit award. 
         [0050]      FIGS. 10A and 10B  illustrate yet another embodiment of a game having a plurality of base games  160  and  162  that share a moveable award-modifier reel  164 . As shown in  FIG. 10A , the award-modifier reel  164  is positioned between or adjacent to a first base game  160  having three reels and a second base game having four reels  162 . The award-modifier reel  164  may be moved to a position such that in the direction of the arrow results in a game wherein the first base game  160  has four reels and the second base game  162  has three reels. While  FIGS. 10A and 10B  show the award-modifier reel  164  moving one position to the right, it is contemplated that the award-modifier reel may be moved to the left, in either direction, or moved more than one position at a time. 
         [0051]    According to various embodiments, a player or a game controller may move the award-modifier reel  164 . For example, the player may be given the opportunity to move the award-modifier reel  164  prior to initiating the game and/or prior to initiating the spinning of the reels. Alternatively, the player is required to pay for the opportunity and/or place a maximum wager in order to move the award-modifier reel  164 . In those embodiments that allow the player to move the location of the award-modifier reel  164 , the gaming machine may be provided with one or more switches/buttons, a toggle switch (not shown), mouse, trackball, touch glass, touch screen, joystick, mini-joystick, or other input means known or developed in the art. In another embodiment, a game controller may randomly select the position of the award-modifier reel  164 . In yet another embodiment, a gaming establishment operator may set the position of the award-modifier reel  164 . Alternatively, the gaming establishment operator may remotely control or set the position of the award-modifier reel  164 . 
         [0052]    In the embodiments of a game having two or more base games, the second game is initiated in response to a plurality of trigger events. According to one embodiment, the second game is triggered in response to the number and amount of wagers made by a player. For example, a player making a maximum wager on at least one pay line on the first game would trigger the second game. In another embodiment, the second game is triggered when a player wagers on a predetermined number of pay lines. For example, a player making a wager on all the pay lines of the first game would trigger the second game. Alternatively, for example, in a 50-line game where each game has 25 lines, all the pay lines of the second game are selected when the player makes a wager on 26 lines (i.e., all 25 lines in the first game and one pay line in the second game). 
         [0053]    Furthermore, in those games that are capable of presenting two or more base games, the mathematical model used to determine the probabilities of winning outcomes for the first base game and any other base games may be varied. Alternatively, the mathematical model of the first and second games is modified such that the payouts for the first and second game are different. In addition to modifying the mathematical model of the first and second games, the first and second games may be two entirely different games that share an award-modifier reel. Accordingly, each game may have different reel layouts, numbers of symbols, and winning combinations, and payouts. 
         [0054]    In one embodiment, the above-disclosed games are presented on a gaming machine having a video game display. The game display may be a flat panel display including, by way of example only, and not by way of limitation, liquid crystal, plasma, electroluminescent, vacuum fluorescent, field emission, LCOS (liquid crystal on silicon), and SXRD (Silicon Xtal Reflective display), or any other type of panel display known or developed in the art. These flat panel displays may use panel technologies to provide digital quality images including, by way of example only, and not by way of limitation, EDTV, HDTV, or DLP (Digital Light Processing). Additionally, the game display may also include a touch screen or touch glass system (not shown). 
         [0055]    In another embodiment, the game display comprises a plurality of mechanical reels. In yet another embodiment, the game display comprises a combination of mechanical reels and video depictions of reels. For example, the gaming machine may include mechanical reels for the base games and a video depiction of a reel for the shared bonus modifier reel. Alternatively, the base game may be a video depiction of a plurality of reels, and the shared bonus modifier may be a mechanical reel. 
         [0056]    In another embodiment, a gaming machine is operatively connected, via a network connection, to a casino gaming system. Referring to  FIG. 11 , a casino gaming system  210  is shown. The casino gaming system  210  comprises back-end server system  212 , network bridges  220 , a network rack  222 , gaming machines  224  and game management units  226  which are all connected via a system network. 
         [0057]    A variety of types of servers may be included in the back-end server system  212 . The type of server used is generally determined by the platform and software requirements of the gaming system. Additionally, the back-end server system  212  may be configured to comprise multiple servers. In one embodiment, as illustrated in  FIG. 11 , the back-end server system  212  is configured to include three servers. Specifically, servers  214 ,  216  and  218  form the back-end server system  212 , or the back-end servers. In one example, server  214  is a Windows-based server, server  216  is an IBM RS6000 based server, and server  218  is an IBM AS/400 based server. Of course, one of ordinary skill in the art will appreciate that different types of servers may also be used. The back-end server system  212  performs several fundamental functions. For example, the back-end server system  212  can collect data from the slot floor as communicated to it from other network components and maintain the collected data in its database. The back-end server system  212  may use slot floor data to generate a report used in casino operation functions. Examples of such reports include, but are not limited to, accounting reports, security reports, and usage reports. The back-end server system  212  may also pass data to another server for other functions. Alternatively, the back-end server system  212  may pass data stored on its database to floor hardware for interaction with a game or slot player. For example, data such as a game player&#39;s name or the amount of a ticket being redeemed at a game, may be passed to the floor hardware. Additionally, the back-end server system  212  may comprise one or more data repositories for storing data. Examples of types of data stored in the back-end server system data repositories include, but are not limited to, information relating to individual player play data, individual game long-term accounting data, cashable ticket data, and sound data (including optimum audio outputs for various casino settings). Additionally, animation and graphic files may also be stored in the back-end server system data repositories. 
         [0058]    The network bridges  220  and network rack  222  shown in  FIG. 11  are networking components. These networking components, which may be classified as middleware, facilitate communications between the back-end server system  212  and the game management units  226 . The network bridges  220  concentrate the many game management units  226  (2,000 on average) into a fewer number (nominally 50:1) of connections to the back-end server system  212 . Additionally, the network rack  222  may also concentrate game management units  226  into a fewer number (2000:1) of connections to the back-end server system  212 . The network bridges  220  and network rack  222  may comprise data repositories for storing network performance data. Such performance data may be based on network traffic and other network related information. 
         [0059]    Optionally, the network bridge  220  and the network rack  222  may be interchangeable components. For example, in one embodiment, a casino gaming system may comprise only network bridges and no network racks. Alternatively, in another embodiment, a casino gaming system may comprise only network racks and no network bridges. Additionally, in an alternative embodiment, a casino gaming system may comprise any combination of one or more network bridges and one or more network racks. 
         [0060]    The gaming machines  224  illustrated in  FIG. 1  act as terminals for interacting with a player playing a casino game. In various embodiments, any of the gaming machines  224  may be a mechanical reel spinning slot machine, video slot machine, video poker machine, keno machine, video blackjack machine, or a gaming machine offering one or more of the above described games. Additionally, each gaming machine  224  may comprise one or more data repositories for storing data. Examples of information stored by the gaming machines  224  include, but are not limited to, maintenance history information, long-term play data, real-time play data and sound data. The sound data may include, but is not limited to, audio files, sound clips, .wav files, mp3 files and sound files saved in various other formats. Furthermore, each gaming machine  224  comprises an audio system (not shown) for outputting sound. Typically, the audio system comprises one or more speakers, an amplifier, and access to one or more sound files. 
         [0061]    Game management units (GMUs) connect gaming machines to network bridges. The function of the GMU is similar to the function of a network interface card connected to a desktop personal computer (PC). Referring to  FIG. 11 , a GMU  226  connects a gaming machine  224  to the network bridge  220 . Some GMUs  226  have much greater capability and can perform such tasks as calculating a promotional cash-back award for a player, generating a unique ID for a cash redeemable ticket, and storing limited amounts of game and transaction based data. Some GMUs  226  may comprise one or more data repositories for storing data. The types of data stored by the GMUs  226  may include, but is not limited to, real-time game data, communication link performance data, real-time player play data and sound data including sound files and audio clips. 
         [0062]    In one embodiment, the GMU  226  is a separate component located outside the gaming machine. Alternatively, in another embodiment, the GMU  226  is located within the gaming machine. Optionally, in an alternative embodiment, one or more gaming machines  224  connect directly to a network bridge  220  and are not connected to a GMU  226 . 
         [0063]    The back-end server system  212  may further comprise a slot data system (not shown) stored in one or more data repositories. The slot data system is a computerized accounting and machine monitoring system. Optionally, the back-end server system  212  may also comprise a casino management system (not shown). The casino management system provides casinos with a fully integrated, user-friendly software application to manage casino player tracking, promotional, and accounting functions. Features of the casino management system may include player tracking and analysis, table-game management, cage and credit, offer and event management, player club enrollment and redemption, and comprehensive reports and data analysis. 
         [0064]    Additionally, the back-end server system  212  may feature a player tracking system (not shown). The player tracking system allows a casino to monitor the gaming activities of various players. Additionally, the player tracking system is able to store data relating to a player&#39;s gaming habits. That is, a player can accrue player points that depend upon the amount and frequency of their wagers. Casinos can use these player points to compensate the loyal patronage of players. For example, casinos may award or “comp” a player free meals, room accommodations, tickets to shows, and invitations to casino events and promotional affairs. 
         [0065]    Typically, the player tracking system is operatively connected to one or more input components on a gaming machine  224 . These input components (not shown) include, but are not limited to, a slot for receiving a player tracking card, a keypad or equivalent, an electronic button receptor, a touch screen, or the like. The player tracking system may also include a database of all qualified players (i.e., those players who have enrolled in a player rating or point accruing program). Generally, the database for the player tracking system is separate from the gaming machine  224 . 
         [0066]    In a casino gaming system utilizing a player tracker system, player data may be retrieved from a recognized player to personalize an animated event. For example, in a triggered animated event, information pertaining to the player, such as player name, may be used to customize the animation. Specifically, the animated event may comprise a picture of the player, or the player&#39;s name. Additionally, based on the player&#39;s status, the player may be entitled to a maximum number of wild symbols when the animated event is triggered. For example, a player having VIP status may be entitled to more wild symbols than a player having non-VIP status. 
         [0067]    The various embodiments described above are provided by way of illustration only and should not be construed to limit the recited invention. Those skilled in the art will readily recognize various modifications and changes that may be made to the recited invention without following the example embodiments and applications illustrated and described herein, and without departing from the true spirit and scope of the disclosed embodiments, which is set forth in the following claims.