The Brain-Eating Meteor is a creature from outer space who encountered Billy in his backyard after complaining that he was lonely after Mandy and Grim wouldn't play with him. It appeared in the episode "Little Rock of Horrors" of The Grim Adventures of Billy and Mandy, where it appeared before a lonely Billy and convinced the idiotic boy through song into bringing everyone in Endsville to it for their brains to be eaten in exchange for its "friendship". Billy fed every human being in town to the meteor without second thoughts except for Mandy, since he considers her his best friend. However, the meteor eventually persuaded him into feeding Mandy to him as well, but after eating her brain the alien died due to Mandy being too evil for it to digest, and Mandy's personality took over the creature, demanding Billy to bring her even more brains.
Appearance[]
It is a giant brain covered in a green shield of plasma that has two arms and a eye.