MEDAL GAME MACHINE

PROBLEM TO BE SOLVED: To provide a medal game machine capable of improving playbility and the aleatory mind of a player by enabling the change of a pay-out rate just while the player plays a game. SOLUTION: An invalid medal guide hole 15 formed rectangular is provided at a side wall part located at the side part of a table 1. An opening/closing shutter 18 is provided on the rear side of the side wall part in respect to the invalid medal guide hole 15. The opening/closing shutter 18 is provided while closing the invalid medal guide hole 15 and constituted so as to be reciprocated back and forth by an opening/closing shutter driving part 32. Since a motor driving control part 34 controls the rotation of a motor 33 based on a signal from a control circuit 28 in the case of performing jack pot control, the longitudinal opening length of the invalid medal guide hole 15 is changed to be longer so that an opening area is expanded and the pay-out rate is set a little lower.