| 摘要 |
<P>PROBLEM TO BE SOLVED: To appropriately perform jackpot prior determination in a game machine for performing jackpot prior determination and performing dropping lottery. <P>SOLUTION: In the game machine, jackpot drawing random numbers and dropping lottery random numbers are acquired by game balls entering a start pocket, the jackpot drawing random numbers are used to perform jackpot drawing, a jackpot game is performed when the result of the jackpot drawing is a positive result, the winning probability of the jackpot drawing is shifted from a low probability state to a high probability state after the jackpot game is finished, the dropping lottery random numbers are used to perform the dropping lottery when the winning probability of the jackpot drawing is high, and the winning probability of the jackpot drawing is shifted from high probability to low probability in the case of the positive result. In the game machine, when the winning probability of the jackpot drawing is in a high probability state, the dropping lottery random numbers are used to perform dropping prior determination. When the result of the dropping prior determination is a positive result, the jackpot prior determination is performed in the low probability state; and when the result of the dropping prior determination is a negative result, the jackpot prior determination is performed in the high probability state. <P>COPYRIGHT: (C)2012,JPO&INPIT |
