| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide performance control technique for appropriately raising game features in a pinball game machine where a winning probability is variable. <P>SOLUTION: A performance image display means 138 performs a promotion expecting performance, which suggests a probability that the setting of a lottery winning probability is changed into a high probability, in a case where omission winning is generated when the lottery winning probability is set to be the low probability, and performs a demotion risk performance, which suggests a probability that the setting of the lottery winning probability is changed into a low probability, in a case where the omission winning is generated when the lottery winning probability is set to be the high probability. The performance image display means 138 continues the promotion expecting performance till succeeding normal winning is generated in a case where the setting of the lottery winning probability is changed to be the high probability, determines a promotion performance end time point with the generation time point of the omission winning to be a trigger for performing the promotion expecting performance as reference in a case where the setting of the lottery winning probability is kept to be the low probability, and ends the promotion expecting performance in a case where the promotion performance end time point comes even before the succeeding normal winning is generated. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
