1987 Rocksteady

Name: Rocksteady

Age: Unknown

Occupation: Former gang member and Shredder's henchman

Favorite food: Chinese takeout

Favorite color: Gray

Weapon of choice: Laser blaster, wooden sword and anything he can use

Interests: Playing video games, reading comic books, goofing off with Bebop

Rocksteady along with his buddy, Bebop, are former gang members in New York City.  He and Bebop are employed by Shredder, who had them go off on a mission one night to sign off April O'Neil for doing a news story that could expose them as criminals.  They ambush April to lead to the sewers, where both Rocksteady and Bebop are beaten up by ninja shadow warrior mutant turtles.  The next day, Shredder selects Rocksteady and Bebop for an experiment that could make them stronger.  The experiment with the mutagen mutates Rocksteady into a rhino that was stolen from the Central Park Zoo, and Bebop into a warthog.  Just like Bebop, Rocksteady is dumb, clumsy, an oaf and a goofball unsuited for the missions that Shredder sends them on.  Every time they battle the Turtles, they end up badly beaten by the Turtles.  Every once in a while, Bebop and Rocksteady will kidnap April O'Neil with attempt to lure the Turtles out to rescue her and battle happens.