Rocksteady is a character from the TMNT comic strips.
History[]
Hideous Brain Munching Alien Beastie[]
When Oopsie goes missing, a frantic Michaelangelo searches everywhere and then begins putting up reward posters. Raphael walks up on his brother while he’s nailing a poster on a sewer wall. The poster offers a billion-dollar reward and Raph tells Mike he can’t offer that kind of money. Mike tells him he can, and Raph asks where he’s getting the cash. Mike informs him that he sold his comics.
Raph has a fit upon learning that Mike sold the entire collection for ten bucks. He says the comics were his life, his heart and soul and each was a treasure. Hands on hips, Mike reminds him that he had eight hundred copies of X-Cavators number 1. Mike also says it took forever to find someone goofy enough to buy them. The next panel shows Bebop and Rocksteady surrounded by the comics books they bought off of Mike. Bebop asks if the stories all seem kind of the same and Rocksteady answers that they do – and asks for another one.