Artwork of Boo Mario from Super Mario Galaxy
|Item required||Boo Mushroom|
|Other forms||Boo Luigi|
|Powers and Abilities||Temporary flight|
Able to understand Boo language (Booish)
|First appearance||Super Mario Galaxy|
|Latest appearance||Super Mario Galaxy 2|
This form first appeared in Super Mario Galaxy in the Ghostly Galaxy. If Mario obtains a Boo Mushroom, he will turn into Boo Mario. Boo Mario can float by pressing and turn himself invisible by shaking the Wii Remote, making Boo Mario go through solid walls. If he flies into a light, he turns into regular Mario. The Boos in the area that Boo Mario is in will become infatuated and follow him around.