Boos are a species of ghost that mostly Bowser control. They chase after the characters in the Super Mario series when their backs are turned. They are ruled by King Boo. Boos are usually white, by are sometimes pink which are ruled by McBoo, and the Happy Boos are ruled by Boo JC.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.