Crimson Cockatoo

Crimson Cockatoo is the superhero alias used by Bartman's grandpa in a story told by Bart Simpson.

History
When Bartman wanted revenge for his parent's death, his grandfather tells him that he was the Crimson Cockatoo when he was young, and helped him get his super powers. When he completed his training, Crimson Cockatoo wanted to give him the same clothes that he wore as a superhero, and call himself "Crimson Cockaboy", to which Bartman said he would think about.