Used in conjunction with the standard Wii remote, certain games need the Nunchuk controller for additional control options. Contoured perfectly to fit a player's hand,
The Wii Nunchuk (left) connects directly to the Wii remote. View larger.
Many games will allow you to control your character's movement with the Nunchuk in your left hand, while your right hand is free to execute the action movements with the Wii Remote. For example, the Nunchuk is particularly useful for games like Wii Boxing. You can use the Nunchuk to punch with your weaker hand, while you use the Wii remote to punch and jab with your predominant hand.
Take the fun to the next level with two-handed control of your games. View larger.
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. Perfectly suitable for either right or left-hand use, the Wii Nunchuk controller grants accessibility not often seen in previous game controllers.
Also, the Nunchuk controller doesn't need its own power--it plugs into the Wii Remote controller when it's in use. So there's no need to worry about charging or replacing expensive batteries.
Adding a Nunchuk to your Wii system will definitely help you open the doors to the next level of gaming, and seriously step up performance. Just be careful not to knock out your significant other, or bruise the dog, severely, while using one, or two Nunchuk controllers.