When Rick Wilder tries to stop A.I.M. agents from using his high school lab for a new experiment, he is caught in an explosion that causes his backpack full of comic books and Combos Baked Snacks to fuse into Rick’s body, turning him into an amalgam of his favorite heroes. Now, he’s like Popeye with spinach, transforming every time he pops a Combo.
A.I.M. brings in the Super-Adaptoid, but even that weapon cannot defeat a kid who has cheese filled pretzels in his blood.
No, of course this is not canon. But that’s a pretty wild origin, no? Make you wanna buy some merch?