Board Thread:Naruto Discussions/@comment-3306440-20140507091001/@comment-17623-20140509180002

Everything past the Namek Saga was an asspull from Toriyama. And yes, every villain past Freeza was defeated by an asspull.

Cell => Killed by Super Saiyan 2 Gohan. Super Saiyan 2 itself being an ass pull because Goku was supposed to be the only Super Saiyan.

Majin Buu => His very existence was an asspull, but him being defeated by the power just from Earth should count. If he actually got enough energy from the universe that would make far more sense but from what I remember, it was just Earth.