An image generation system includes a display control section which controls display of images displayed in a touch panel display and a display, a movement control section which controls movement of a moving object, a game calculation section which performs processing of calculating a game parameter which changes as a result of game play using the moving object, and a movement permission condition determination section which determines whether or not a condition for permitting movement of the moving object from a game field G1 to a game field G2 has been satisfied based on the game parameter which changes as a result of game play in the game field G1. The movement control section performs control of moving the moving object from the game field G1 to the game field G2 when the movement permission condition has been satisfied.