Teenage Mutant Ninja Turtles: Tournament Fighters is a pretty solid fighter, coming from that brief period in 1993 where the popularity of TMNT hadn’t QUITE ended yet, but the popularity of Street Fighter II and Mortal Kombat was undeniable.
Anyways, on the Super Nintendo version of the game, The Rat King is one of the final 2 bosses, in a pretty purple color. I had an extra Rat King toy laying around, so I painted him to match the video game…and then mucked him up, because, holy cow, look at all the stuff crawling on that guy!
Rat King, TMNT, and all related characters are property of Nickelodeon. Teenage Mutant Ninja Turtles: Tournament Fighters was created (as far as I know) and published by Konami.