To increase player's desire to participate in the performance of reporting a mission.

The mission is presented so as to be recognized by a player by displaying a performance image corresponding to a mission selection pattern or the like, and a mission selection performance including a button operation urging performance for urging a predetermined operation by the player to an operation button is executed. Thereafter, when an operation valid period is ended without performing a mission selection operation or the like, the determination of a final stop symbol (step S760) and the determination of a notice pattern, etc., are performed so as to easily execute the performance presented as a mission by the mission selection performance or to easily execute the performance presented as a mission which is not automatically selected among the plurality of missions presented by the mission selection performance.

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