To reduce suspicious feelings to be given to a player in processing of a foul ball.

This game machine is provided with an overflow game ball path 275 for passing game balls overflowing from a game ball waiting part 220 for making paid out game balls wait and game balls paid out from a game ball pay-out part 265 when the game ball waiting part is filled with game balls under waiting, an overflow game ball detecting means 283 for detecting game balls to pass the overflow game ball path, adding/updating means 291a for adding/updating the number of the detected game balls as the number of game balls available for a game on the basis of the detection of game balls in the overflow game ball detecting means, a storage part 291c for storing the number of game balls added by the adding/updating means, a foul ball path 253 provided separately from the overflow game ball path and a foul ball detecting means 252 for detecting the foul ball to path the foul ball path and, when foul balls are detected in the foul ball detecting means, game balls as many as the foul balls are paid out from the game ball pay-out part.