| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine capable of inhibiting a fraud for acquiring predetermined processing timing by control means by using electromagnetic wave noise.SOLUTION: MPU 102 executes a win/loss lottery on the basis of an occurrence of entry of a game ball in an operation hole and, when the lottery result is a win, transfers to an opening/closing execution mode. In the win/loss lottery, a jackpot random number counter is used. The jackpot random number counter is a loop counter periodically updating numerical information, where periodical update modes of the numerical information includes an update mode of incrementing the numerical information by one to a maximum value, and an update mode of setting to a minimum value when the numerical information exceeds the maximum value. In that case, the main control board 101 includes a seventh signal route for positively generating a clock noise.SELECTED DRAWING: Figure 6 |
