Mechazoid was the arch-nemesis of the Green Mantle in TMNT: Back to the Sewer. It was during a battle with Mechazoid that Gordon lost his signature piece of cloth, which depowered him. The mantle was found by a comic book-loving boy and kept as a prized possession.
Mechazoid was armed with various weaponry during his battle against the Green Mantle, which included an energy beam and hover jet thrusters.