To provide a game machine which can surely be operated by one hand without watching the hand, and also, can smoothly perform the selection and the determination for a performance display.

A pachinko game machine PM is equipped with an operating device 100 having a selection button 101 which accepts an input by a game player selecting either one choice of two or more different choices in the performance display of an image displaying section 13 and a determination button 102 which accepts the input by the game player for determining the choice selected by the selection button 101. Then, in the operating device 100, the operation face of the selection button 101 and the operation face of the determination button 102 are arranged within a range which can be operated by the finger of one hand without moving the position of the wrist.