To solve a problem that a conventional Pachislot machine has a little variations in a game executed when increasing a replay winning probability after finishing a special game, which makes a game monotonous and bores players.

When a "mini game cancellation" menu 201 is selected among menus displayed on a guide menu screen and a cancellation function "on", or an alternative canceling the production of the mini game, is selected, a sub CPU sets a cancellation flag "on" (S462-S464) and, when a cancellation function "off", or an alternative non-canceling the production of the mini game, sets the cancellation flag "off" (S465 and S466). When the cancellation flag is "off", the mini game is produced, navigation points are awarded according to the game result, however, when the cancellation flag is "on", no mini game is produced and the navigation point is awarded according to a lottery result.