Patent ID: 8608539
Filing Date: 2013-12-17
Classification: G07F

Abstract:
1. A gaming machine comprising: a display device having a plurality of regions in which a plurality of symbols are arranged; and a controller for controlling a base game mode in which a predetermined prize can be determined according to rearrangement of the plurality of symbols, a free game mode in which a predetermined prize can be determined according to rearrangement of the plurality of symbols by playing at least one unit game without betting a gaming medium, and a bonus game mode in which a prize higher than the predetermined prize can be determined, the controller being programmed to execute processing operations of: (1-1) transferring from the base game mode to the free game mode when a specific symbol from among the plurality of symbols is arranged in the base game mode; (1-2) transferring from the free game mode to the bonus game mode when a first transfer condition occurs in a predetermined unit game in the free game mode; (1-3) transferring from the bonus game mode to the free game mode when a second transfer condition occurs in the bonus game mode; (1-4) forming and executing an extended game mode when the free game mode and the bonus game mode successively alternate relative to one another, wherein in the extended game mode gameplay alternates between the free game mode and bonus game mode for a predetermined period; and (1-5) generating the predetermined period of the extended game mode according to a predetermined continuation rate, wherein an ease of entry into the extended game mode between the free game mode and bonus game mode is determined according to the continuation rate and the following transfer routes: a first transfer route from the free game mode to the bonus game mode; a second transfer route from the bonus game mode to the free game mode; a third transfer route from the free game mode to the base game mode; and a fourth transfer route from the bonus game mode to the base game mode.