Boo Mario

Boo Mario is a new form of Mario that will appear in the game Super Mario Galaxy. As its name implies, the Boo Mario form is Mario disguised as a Boo, although his hat and face remain relatively the same.

In order to change into Boo Mario, Mario must grab a floating, white mushroom with an open mouth. With this transformation, Mario can turn himself invisible and pass through certain walls by swinging the Wii Remote, and levitate by pressing the A button. Mario can attract Boos as well, and use them for various purposes. The Boo Suit is lost if Mario takes damage or passes through a beam of light. It is believed that Mario will need to use the Boo Suit to rescue Luigi from the Ghostly Galaxy.