| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve an operation rate of a pinball game machine under normal conditions by raising fun of a game. Ž<P>SOLUTION: An operation switch 13 with which a player is capable of forcibly changing a performance mode of the pinball game machine is provided, and the performance mode could make the transition to a special performance mode under predetermined conditions that the pinball game machine's proceeding is suspended provided that the operation switch 13 is operated according to a predetermined procedure (steps S711-S715). The special performance mode provides the performance that conceals low probability when in the state of low probability and disguises as being in the state of high probability. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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