Teenage Mutant Ninja Turtles — do you have that catchy tune in your head whenever you see those guys? Yep, they are quite popular, and we have TMNT characters in fighting games too.
In Brawlhalla, Raphael, Leonardo, Donatello, and Michelangelo are just Crossover skins, which means they generally copy movesets of the core characters, while still having different Signature attacks.
But in the upcoming game Nickelodeon All-Star Brawl 2, Ninja Turtles have got spots in the primary roster, not just skins. One of them, Raphael, has already been presented in the official gameplay overview series.