REX-1 is a character who appears in the Teenage Mutant Hero Turtles Annuals comics. He is a robot policeman and his name is an acronym for "Robot Enforcement Experiment," the "1" designating his status as the first model produced.
New York's Shiniest (comic)[]
New York's Shiniest is a comic adaptation of the Fred Wolf TMNT cartoon episode. Deciding to investigate a crime wave, April O'Neil soon learns of a scheme to build robot cops. She comes upon the prototype robot cop and finds his controller. When April activates the controller, the robot comes to life and salutes her. He introduces himself as REX-1 and announces that he’s programmed to obey and protect her.