To permit a pachinko-style game machine to be simply and inexpensively manufactured, and reduce a load imposed on a pumping means 34.

The pachinko-style game machine is provided with an addition control means 39 to output a supply signal to a delivery means 29 at the time when balls stored in a tank 28 exceed a prescribed number so as to control the action of the delivery means 29 by the addition control means 39. Consequently, in processing a jackpot, the game machine can significantly reduce the number of balls pumped to the tank 28 by the pumping means 34 per unit time, resultantly can reduce a load imposed on the pumping means 34, and can effectively restrain a fault or a ball blockage from occurring.