A game program causes a mobile terminal or a server to execute displaying a slide puzzle so that a partial image is movable in a predetermined direction according to a touch operation detected by a predetermined input surface, and retrieving, when a purpose of a game is achieved, a character or an item that is usable in a different game or change information to change information set in a predetermined character or item in the different game, as a reward that is given to a user for progress of the different game and is associated with the image.