Instructions
Point the Wii Remote at the television.
Move the Wii Remote to move the on-screen crosshairs, a white circular icon. Move the Wii Remote so that the icon is on the object or enemy you want to use the paint or paint thinner on.
Press the "B" button to splash a small amount of paint or "Z" for paint thinner at the object or enemy you are pointing at. Hold the "B" or "Z" button to produce a steady stream of paint or paint thinner.