| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine capable of reducing deterioration in operating rate. SOLUTION: The game machine includes performance mode changeover means which changes a performance mode, and performance stage changeover means which changes a performance stage in a specific performance mode consisting of a plurality of performance stages. Changeover patterns of the performance stage are associated with reliabilities of a specific state; a specific period after the performance mode changeover means changes the performance mode into a specific performance mode, when a special prize is definitely determined a predetermined number of times in the specific performance mode, consists of a plurality of sections; and, in a section other than the last section, the changeover pattern of a performance stage whose reliability of the specific state is the highest appears at the highest probability. COPYRIGHT: (C)2011,JPO&INPIT
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