To provide a spin drum type game machine which enables not only the validation of the win lines without repeating the operation of depressing the BET button per game but also the start of the game without repeating the operation of tilting the start lever per game.

As the end part opposite to the direction of inserting tokens M is fitted into a step part 61, the BET button 51 is shifted to be depressed in operation. The BET button 51 is forced to return upward as being energized upward with a coil spring 54 but the upward actions of the tokens M are constrained by the end parts 59c of the respective token holding parts 59 while the horizontal actions of the tokens M are constrained by the right end part 61b of the step part 61, so that the BET button 51 is held depressed. This enables the validation of the win lines without repeating the operation of depressing the BET button 51 per game.