Fallout Boy

"Jiminy Jilikers."

- 's unlock message.

 is a limited-time character that was released on February 18, 2015, as part of the Superheroes 2015 Event. He is unlocked upon completion of Superior Squad HQ.

He was re-released on June 14, 2016, for the Superheroes 2016 Event; once again, together with the Superior Squad HQ.

About
 is the sidekick in the comic book series Radioactive Man. In the series, Fallout Boy first appeared in a 1950s Radioactive Man film serial shown at a comic book convention in the episode "Three Men and a Comic Book", and it was implied that the actor who played Fallout Boy might have been gay. However, unlike many Simpsons characters, he has only made a handful of appearances since.

Trivia

 * From Season 2, Episode 21 “Three Men and a Comic Book”.