Knockout City Season 7, "Mutant Mutiny," launched on September 20, 2022, featuring a Teenage Mutant Ninja Turtles crossover with character skins for Leonardo, Michelangelo, Donatello, and Raphael, along with villains Bebop and Rocksteady in the Brawl Pass. The update introduced the "Sludge Works" map with movement-slowing mud hazards, the vision-obscuring Sludge Ball, and a new 100-tier Brawl Pass.