Invader ZIM (2001)

Season 1: Episode 34

While at school one day, Zim throws another fit about the lunch food so Dib throws a muffin at him, which causes Zim to run away in anger. The next day, a pair of Meekrob come to Dib in his sleep and grant him marvelous super powers, in which Dib decides to use to put an end to Zim once and for all. When Dib manages to suppress Zim quite easily, he decides to use his power for the greater good and he lives out the wonderful life he always wanted to have; though perhaps it’s too wonderful.