The game is packaged with the Nintendo Wireless Keyboard, that is, a Bluetooth keyboard powered by 2 AA batteries. Upon starting the game, the player has to synchronize the keyboard with the game by holding down the Fn (Function) button while turning on the keyboard. (The Nintendo Wireless Keyboard is actually nothing more than a Bluetooth keyboard, hence the Nintendo Wireless Keyboard is compatible with any Bluetooth device that accepts other Bluetooth Keyboards. Care should be taken that the layout of the Bluetooth-compatible device matches or is otherwise comfortable with the physical layout of the Nintendo Wireless Keyboard itself.)