To provide a game machine for improving the degree of satisfaction in customers by improving technique of a beginner to allow a ball to enter a winning port.

The game machine includes: a plurality of sensors arranged on a game board and at places where a lot of game balls to enter the winning port pass; a user interface part for notifying a player of the state of shooting speed of the game ball; and a control part for switching modes between a setting mode for shooting while changing the shooting speed of the game ball without relying on the operation of a shooting lever, counting the detections rates of the game balls in the sensors by each shooting speed, and setting the shooting speed with the high detection rate as the ideal speed and a normal mode for allowing the user interface part to notify the player of a difference between the current game ball shooting speed based on the operation of the shooting lever by the player and the ideal speed set by the setting mode.