Nunchuk

A person holding a Nunchuk connected to a Wii Remote

The Nunchuk (model number RVL-004) is a controller attachment for the Wii Remote. It connects to the Wii Remote via a cord, and its appearance while attached resembles the nunchaku. A Nunchuk features an analog stick and two trigger buttons: a rectangular Z button and a smaller circle-shaped C button. A Nunchuk is packaged with every Wii console. It works in tandem with the main controller in many games, including some Wii U ones, and for some Wii games the Nunchuk is required to be connected. Like the Wii Remote, the Nunchuk also provides accelerometer for three axis motion-sensing and tilting, but does not have a speaker, a rumble function, or a pointer function like the Wii Remote does.

The body of the Nunchuk measures 4.45 inches (113 mm) long, 1.5 inches (38 mm) wide, and 1.48 inches (37 mm) thick.

There are several unofficial wireless versions of the Nunchuk. They connect to the Wii Remote via a wireless adapter hooked into the cord input on the bottom of the Wii Remote, the signal is sent from the bottom of the Nunchuk to the hooked-in adapter on the remote.

In one conference, it was stated that Retro Studios helped design the Nunchuk because the Remote on its own would not be able to play Metroid Prime 3: Corruption. In the game, Samus's movement is controlled via the joystick, and the C button allows her to morph in and out of Morph Ball mode. The Z button locks Samus' point of vision, or locks onto an enemy target if one is in Samus' view. The Nunchuck is also used to fire the Grapple Lasso, by casting the Nuchuck forward to Grapple a target, and by flicking the Nunchuk backwards to remove the target. This is used to remove a variety of obstacles, including shields, debris and other things.

Trivia

• On prototype Nunchuks, the Z and C buttons are labeled Z1 and Z2 respectively.