To enhance the seasoning of a game by relating the generation of RT (Replay Time) with a game in CT (Challenge Time).

This slot machine is constituted so that RT drawing is performed at the time of winning the small role of "watermelon" in the CT in which the stoppage of reels is not controlled and the small role is made to be won regardless of the setting of a winning flag, an RT holding flag is set at the time of winning in the RT drawing, an RT winning flag is set when the CT ends, and a game state is controlled to the RT in which the probability of replay winning is increased without changing the winning probability of roles other than replay at the time of RT winning based on the RT winning flag set according to the result of the RT drawing during the CT.