Alongside Garfield, Rocksteady from Teenage Mutant Ninja Turtles was originally going to be one of the two post-launch playable fighters in Nickelodeon All-Star Brawl - notably without his partner-in-crime Bebop, much like Michelangelo and Leonardo's inclusion without Raphael and Donatello. He was ultimately replaced by Shredder, and all that remained of his inclusion at launch was a placeholder stock image and the codename "hunter".

Rocksteady would eventually become playable in Nickelodeon All-Star Brawl 2.