Controllers
The standard Wii controller that comes with most consoles is a thin, hand-held device that detects motion. The attachment accessories for this controller include a protective jacket and a wrist strap to ensure security. Wii gamers can also play with traditional "button" controllers depending on what the game calls for.
Game-Specific Items
A steering wheel accessory is useful in racing and driving games. The Wii Zapper accessory can be used with specific shooting games. For Wii Fit players, the Wii Balance Board is a necessary accessory. The board senses the user's movements and also serves as a scale to track the participant's weight loss.
Connectivity
Many of the Wii accessories necessary to hook up the system are included in the console package. The Wii component video and A/V cables connect the console to your television. The LAN adapter enables Internet connectivity. The AC adapter provides power to the console. These necessary accessories can also be bought separately through various outlets.