| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which achieves further improvements in security against fraudulent procurement of favors. SOLUTION: When starting signals are outputted based on winning with pachinko balls, big win counter values are gained and big wins are determined based on the comparison of the bin win counter values with big win values. The big win counter gets additions in a ring centering around random reference values and in case of the disruption of the power source, measured values of the big win counter and the reference values are backed up with an RAM. In such an arrangement, the big win counter gets additions based on both backup data from the measured values to the reference values. Therefore, the big win counter will not get the addition from a specified fixed value '0' against any forgery that may be made at the starting position to prevent the determination of big win timings from outside thereby improving the security against fraudulent procurement of big wins.
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