To provide a game machine capable of inhibiting monotonous switching display of background images, and also capable of suppressing the occurrence of a state where it is hard to switch to a background image desired by the player to display it.

When it is determined by a background image change determining means that a state allows change of a background image, a background image setting means performs setting by switching a background image, selected by a background image selecting means, to a background image stored in a background image storing means when confirmed that no background image reservation is made by a background image reservation confirmation means, and the background image setting means performs setting by switching a reserved background image to the background image stored in the background image storing means when it is confirmed that the reserved background image exists.