A game device for playing a game by inserting a game-playing medium into an insertion section includes a casing; a main door having a display section on which game elements are displayed and that can be freely opened and closed with respect to the casing; a front door releasably located below the main door and on a front face of the casing, attachment of the front door to the casing and release of the front door from the casing being locked by closing the main door and released by opening the main door.