GAME SYSTEM, CONTROLLER, GAME DEVICE, CONTROL METHOD FOR GAME DEVICE, AND PROGRAM

A game system includes a game device used by first and second users and a controller. The game device includes: an association section associating the controller with the first user using the controller; a first process executing section executing a process of a general-purpose function in accordance with first operating information acquired from the controller when the general-purpose function, not associated with the users, executes; and a second process executing section executing a process of a first user function in accordance with second operating information acquired from the controller when the first user function, associated with the first user, executes. The controller includes: first and second operating members associated with the first and second operating information, respectively; an operation receiving section receiving an operation on the operating member; and an operating information outputting section outputting the operating information associated with the operation on operating member to the game device.