From trailers and promotional content released for Teenage Mutant Ninja Turtles: Mutant Mayhem, it did feel like the Heroes in a Half Shell would face many villains. To start with, Superfly (played by Ice Cube) and his team had a bevy of iconic enemies. This included Bebop and Rocksteady, two of the Turtles' most sinister threats.
Source:https://www.cbr.com/tmnt-mutant-mayhem-redeems-bebop-rocksteady/