To enhance game property by making a player positively participate in a game.

In the Pachinko game machine, a shooting knob 28 for shooting a game ball is disposed on the right side of a pachinko machine 20, and a push-button switch 29 is disposed on the left side of the pachinko machine 20. The push-button switch 29 is operated to drive a flipper in a pinball game which is played by hitting a game ball back with the flipper when the game ball shot by operating the shooting knob 28 wins a prize in a second game area. While the pinball game is played, a big win probability is turned into high probability in the decision of big win to be performed when the game ball shot by operating the shooting knob 28 wins a prize in a start prize hole. Thus, it is necessary to simultaneously operate both the shooting knob 28 and the push-button switch 28, thereby further enhancing game property.