Metalhead is a robot turtle in the 1987 cartoon series. First appearing in the The Making of Metalhead, Metalhead was originally an enemy weapon created by Krang before Donatello reprogramed him to be their ally.
History[]
Created by Krang to be the ultimate weapon against the Turtles, Metalhead was programmed with all four of their brainwaves, allowing him to combine and counter their collective fighting styles. Attacking their sewer lair; the Turtles, Splinter, and April were all easily overpowered due to Metalhead's combat efficiency and the Turtles suffering an affliction of Turtle Pox. Luckily, Donatello was able to use his Turtle Communicator to scramble Metalhead's CPU, after which, the Turtles dragged him back to their lair for reprogramming. However, because he was programmed with all four Turtle's identities, Metalhead was prone to dissociative identity disorder, exhibiting different personalities from one minute to the next. When Shredder along with Bebop and Rocksteady showed up to track him down and retrieve him, Metalhead helped the Turtles lead them away from the lair until he was shot by Bebop, leading to a malfunction that made him attack everyone. Using some of the broadcasting equipment at the Channel Six News Building, Donatello was able to stabilize Metalhead's programing to remind him that the Turtles were his friends so he could help defeat their enemies. At the episode's end, as the Turtles were still sick with Turtle Pox, Metalhead became their new nurse.
Despite moving in with the Turtles, Metalhead's only other appearance was in the episode, Big Bug Blunder. In an attempt to make spring cleaning easier, Donatello programed Metalhead to vacuum the lair. However, the robot got carried away and began sucking up everything, including the rug, forcing the Turtles to shut him down.