GAME MACHINE

PROBLEM TO BE SOLVED: To increase the fun of a game by giving a player surprise and impact.SOLUTION: A non-contact detection sensor is disposed which has a detection range in left, upper and right directions from a performance button. When a timing for operating the performance button comes, effective periods for the non-contact detection sensor and the performance button are generated. If an action pattern of a player to press the performance button is detected by the non-contact detection sensor during the effective period for the non-contact detection sensor (S908-S910), a pre-operation performance is executed (S912-S918). If the performance button is pressed by the player during the effective period for the performance button thereafter (S922 and S924), a performance corresponding to the operation is executed (S926). A performance can be executed not only after the operation of the performance button 26 but also immediately before the operation, and the fun of the game can be increased by giving the player surprise and impact.