To provide a game machine able to suppress degradation in amusement, by preventing monotony of a game.

Internal lottery is carried out based on the operation of a start lever 210, and the rotation of reels 301a to 301c are started. The game machine includes an operating means provided with a reel stop function able to stop the reels rotating in order to cause a main game to progress. Upon operation of these operating means 211a to 211c, the stopping of the reels is controlled so that a combination of patterns based on the result of the internal lottery is displayed in an open window 401. When a combination of bonus patterns are displayed, a bonus game is carried out. The game machine includes: an accessory device by which a predetermined performance is carried out based on the result of the internal lottery; and a sub-game providing means for providing a player with a sub-game using the accessory device. A compound operation means includes a sub-game executing function for causing the sub-game to be carried out based on an operation.