Boom Boos as they appear in Super Mario Galaxy.

Bomb Boos are black Boos that will explode on contact. They first appeared in Super Mario Galaxy for the Wii in the Ghostly Galaxy, where Mario could swing the boos around using their tongue. If they hit something, then they would explode, possibly leading Mario to a previously inaccessible area. They're also used against Bouldergeist, the galaxy's boss.

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.