To provide a game machine capable of preventing ball clogging and ball catch by preventing a game ball from being caught between a tip end of an opening/closing door and an upper edge of an opening part, when a large winning hole is closed.

The game machine includes a large winning hole 16 that is provided on a game board and communicated to a winning hole where a game ball can enter, and an opening/closing door 16b that opens/closes the large winning hole 16 so as to change from a closed state where a game ball has difficulty to enter, to an open state where a game ball can easily enter. The opening/closing door 16 opens/closes the large winning hole 16 by rotationally turning in the cross direction using a lower end edge 40 in the closed state, for a fulcrum. A notch 31 is provided at a ceiling part 33 of the large winning hole 16 such that a clearance is formed between the upper edge part of the large winning hole 16 and an upper end edge 41 of the opening/closing door 16b in the closed state. Even in a state where the opening/closing door 16b is almost closed, the game ball can enter the large winning hole 16 from the clearance.