The Boos of Luigi's Mansion are characters in the Super Mario series. They first appeared in Luigi's Mansion. They are a group of fifty Boos that Luigi finds in the Basement that scatter around the mansion. Thirty-five of them hide in different rooms and have to be captured, fifteen of them transform into Boolossus. Some of them tackle Luigi, some don't. Their HP will go down when Luigi uses his vaccum cleaner on them, but they can flee to other rooms. Their names are all puns. The last Boo collected will drop a Gold Diamond. They are BamBoo, Bootha, GameBoo Advance, TaBoo, Boolicious, TurBoo, Boo la La, GameBoo, Kung Boo, Boogie, Peek a Boo, GumBoo, Boomeo, Boodacious, Booligan, Booregaurd, Mr. Boojangles, LimBooger, Boonswoggle, Boohoo, ShamBoo, Booris, Booigi, Little Boo Peep, Boo B. Ha