To provide a game machine not to give unexpected disadvantage to a player and to inform the player that the ball discharge operation is necessary, with reduced errors in the data on the number of put-out balls in a specific game state.

When a specific condition is satisfied, the game state in the game machine becomes the specific game state in which a player can easily acquire prize balls. If game balls pass through a specific area in the specific game state, the specific game state continues over a prescribed number of rounds of game. If it is detected that a game ball storage tray is full in the specific game state, shooting of game balls is stopped or the shooting cycle is extended with the passage of a game ball through the specific area as an initiator. The stop of shooting or extended shooting cycle is continued from the termination of the present specific game state till the start of the next specific game state, and the process is repeated till the full state of the game ball storage tray is dissolved.