| 摘要 |
PURPOSE: To increase the expectation and strain of a player and to improve game enjoyability by selecting a specific value doubling game from a doubling game execution selection part by a playere himself and doubling a specific value when a fixed condition is established by executing the specific value doubling game. CONSTITUTION: A control part 13 outputs a control signal to a doubling game execution column 17 when a big hit is attained by the operation of a variable display column 18, and the doubling game execution column 17 displays YES/NO and ?. At this time, when the selection signal of doubling game execution by the selection of the player is inputted from the doubling game execution selection part 19, the control signal is outputted to the doubling game execution column 17, and the digit of the doubling game execution column 17 is displayed variably. In such a way, a doubling game is executed. The specific value is doubled when the digit display column of the variable display device 18 satisfies a specific establishment condition. When it is not satisfied, the specific value is nullified. |
