| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which has unpredictability in the execution of a performance thereby having widened width of a game property. SOLUTION: There are a valid period during which respective operations to a bet button B0, a start lever SL and stop buttons B1-B3 are validated for a game progress control means 110 and an invalid period during which they are invalidated. A performance control means 170 causes a performance device (display device 330 and speaker 340) to execute a performance whose execution trigger is the operation to one of the bet button B0, the start lever SL or the stop buttons B1-B3, and changes the execution trigger of the present performance to an execution trigger corresponding to the operation to the other operation means (bet button B0, start lever SL and stop buttons B1-B3) with the operation to one of the bet button B0, the start lever SL and the stop buttons B1-B3 performed during the invalid period as a trigger. COPYRIGHT: (C)2008,JPO&INPIT
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