To provide a game machine capable of executing appropriate control operation without wasting a memory space and a circuit space.

A main control part comprises an electron device incorporating, along with a CPU, a circuit REV coping with abnormalities for resetting the CPU when not receiving clear data until monitoring time. Standby means SS3 preventing the circuit REV coping with abnormalities from functioning until standby time passes, and start means ST3 allowing the circuit REV coping with abnormalities to function based on operation of a control program when the standby operation is completed are provided. The control program includes avoidance processing for outputting clear data at each predetermined time, and the monitoring time is set longer than lapse time from when the start means functions to when the avoidance processing is firstly executed.