To provide a pinball game machine eliminating the issue of misinformation when detecting vibration by appropriately determining whether the vibration is a fraud or not.

In a state where game balls are in a central ball entry device 28, the pinball game machine can make the notification (a fraud notification process 1) that a fraud has been executed which vibrates the Pachinko game machine 1 to affect the movement of game balls. Alternatively, this Pachinko game machine can notify (a fraud notification process 2) the reception of continuous or intermittent vibrations whose occurrence possibility due to a pure coincidence is extremely low, based on the number of times of the notification per unit time.