To give the bonus of prize balls to a player under a prescribed condition in the case that the upper limit of the number of holding balls increases by one stage and to give penalties to the player by executing control so as to reduce the upper limit of the number of the holding balls under the prescribed condition even after the upper limit of the number of the holding balls increases by one stage in a pachinko game machine capable of changing the upper limit of the number of the holding balls stepwise.

This Pachinko game machine is constituted such that the increase of the number of the holding balls increased stepwise by a holding ball number upper limit varying means 71 is determined as a prize ball bonus special range, and the number of the prize balls to be put out from a prize ball put-out means 69 is increased when a holding ball is maintained under the prescribed condition in the prize ball bonus special range. Also, in the pachinko game machine, when the holding ball is not maintained under the prescribed condition in the prize ball bonus special range, the upper limit of the number of the holding balls countable in a holding ball number counting means 73 is reduced by the holding ball number upper limit varying means 71.