To provide a Pachinko game machine accurately reading an optical code displayed on an image display device in comparison with a conventional one.

The Pachinko game machine executes a sequence of symbol generation steps in which when a game ball passes a special start pocket, a special symbol is variably displayed and then stopped to be displayed on a special symbol display device, and when the special symbol is stopped and displayed in a winning pattern and hits a jackpot as a result of the symbol generation steps, a game status is controlled to a special game status for opening a jackpot pocket in a predetermined mode. The Pachinko game machine includes: an optical code display device for displaying an optical code; and an optical code display controlling unit executing optical code display operation for displaying the optical code on the optical code display device based on a predetermined opportunity. Furthermore, a special symbol control unit does not execute the symbol generation steps during the optical code display operation, even when a game does not have a special game status.