| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a game machine which increases a change in the number of prize balls obtaining jackpot game states and removes distrust in round number lottery, thereby contributing to enhancement of interest. <P>SOLUTION: When a start port detection means detects game balls having entered start prize winning ports 8A, 8B, it is determined whether a game condition about whether or not to shift to a jackpot game state is satisfied or not. In shifting to the jackpot game state, the kind of upper limit of the number of rounds and a decision rate of the upper limit of the number of rounds are differed between a case in which the start prize winning port where the game balls enter has triggered the shift is the first start prize winning port 8A and a case in which it is the second start prize winning port 8B. and the kind and the decision rate of the upper limit of the number of rounds are decided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
