To provide a game machine for relieving a player who feels uninterested in the game while being given no chance for an AT operation for a long period, without changing an internal winning probability, so that an interest inexistent in the prior art is given to the attainment of an ART.

The ordinary operation of a reel is temporarily interrupted after a predetermined latent game number and at a front stage of deriving the result of a single play. Under an irregular condition different from the ordinary one and independently of the result of the play, the reel is stopped after variably displayed. At each time when a predetermined specific play condition such as a rare small role winning e.g., a watermelon or cherry, a latent play number till a freeze is next caused to occur is determined, and a freeze drawing pattern to be displayed at the freeze occurrence time is determined from an internal winning pattern corresponding to a condition device having a relatively low internal winning probability but a relatively high AT operation factor. At the freeze occurrence time, an AT lottery is performed in a weighted manner in accordance with the determined freeze drawing pattern.