| 摘要 |
<p>PROBLEM TO BE SOLVED: To attain improvement of performance effects based on a big role performance and improvement of interest of a game by suppressing eccentricity in a progress extent of the big role performance.SOLUTION: In a big role lottery, a lottery result of bonanza or failure is derived and when the bonanza is won, a 5R big role game or a 15R big role game is executed. During the big role game, the big role performance is executed and an execution pattern of the big role performance includes a plurality of specific execution patterns (chapter 1 to chapter 5) of which the execution order is preset. The execution pattern of the big role performance is determined from a type of the big role game to be executed and the total number of prize balls put out within a predetermined count period such as during consecutive advantage. At such a time, when the total number of prize balls exceeds a threshold, the specific execution pattern executed the last time is shifted to the specific execution pattern to which the next execution order is set.</p> |
