A second player can use a Wiimote to make the following changes in the 
corresponding single player game.

Balloon Trip Breeze: Aim at objects and press A to knock them out of place. 
Donkey Kong's Crash Course: Point at player one and hold A to create a slow-down bubble. 
F-Zero Racing: Aim at obstacles and press A to destroy them. 
Octopus Dance: Pointing and press A on different objects to play various sounds. 
Takamaru's Ninja Castle: Aim at enemies and press A to hold them.