Contoured to perfectly fit a player's hand, the Nunchuk controller builds on the simplicity of the Wii Remote controller and goes an extra step to meet the needs of gamers. The Nunchuk controller connects to the Wii Remote controller at its expansion port and is used in conjunction with the Wii Remote controller.
The Nunchuk is a Wii Remote accessory that gives you an additional means of control in Nunchuk-compatible games. By connecting the Nunchuk to the Wii Remote via a short cable you can benefit from its extra buttons, analogue joystick and additional motion-sensing controls.
With a Wii Remote in one hand and Nunchuk in the other, you have a new level of control. For instance in The Legend of Zelda: Twilight Princess, the Wii Remote is your sword while the Nunchuk is your shield.
The Nunchuk controller contains the same motion-sensing technology enabled in the Wii Remote controller but also includes an analog stick to assist in character movement. In several games, players will use the analog stick of the Nunchuk controller to move their characters and the Wii Remote controller to perform a specific action, whether that's throwing a pass in football or aiming a ranged weapon in an action game.
Along with the analog stick, the motion-sensing Nunchuk controller also contains two buttons positioned for quick access. Because the Wii Remote and Nunchuk controllers are only relatively dependent on each other, players are free to hold them in whichever hand is most comfortable. The ambidextrous nature of the Wii controllers grants accessibility seldom seen in game controllers.