Origins: Dragon Ball
Classification: Majin, Cosmic entity
Threat level: Quasar-
Powers and abilities:
Physical strength: At least large planet+ level striking (His stronger forms dwarf even Mystic/Ultimate Gohan)
Durability: At least solar system+ with regeneration Regeneration makes him hard to keep down, has regenerated even from being a cloud of dust and from his blast which overkilled Earth with at least small star level power according to some calcs. His weakest form survived Final explosion which was an all out suicide attack from Majin Vegeta whom is stronger than Cell)
Speed: At least sub-relativistic travel, at least faster than light+ in his other speeds (several times faster than beings like Cell in his lower forms, several times faster than that in his stronger forms)
Intelligence: Above average. Ironically can be somewhat innocent which makes him prone to being fooled, however he is one of the highest natural battle genius in the series even impressing someone like Goku with his prowess. Capable of learning nearly any technique after seeing it just once.
Stamina: Extremely high, as Kid Buu his upper limits are unknown.
Standard equipment: None.
Key: Fat Buu || Evil Buu || Super Buu || Super Buu w/Gotenks absorbed || Super Buu w/Gohan absorbed || Kid Buu || Good Buu || Slim Buu