Some attractions require just the GamePad; others the GamePad and the WiiMote; still others the GamePad and the Wiimote and the Wiimote nunchuck attachments. (gameological.com)
thats obvious as if every game uses the same controls thats like saying evesy game needs to use nunchuck because nintendo said so.. (wiiugo.com)
The Wii Nunchuck controller attaches to the end of the Wii Remote control and has extra buttons and a joystick. (jjgames.com)