Trigolem

The Trigolem is a gigantic, mechanical Triceraton that serves as the second boss of the console versions of Teenage Mutant Ninja Turtles 3: Mutant Nightmare. Piloted by Prime Leader Zanramon himself, the Turtles must first damage it to the point where it crashes down so that its weaker top torso is exposed. Zanramon's mecha was very powerful, but the Turtles were able to persevere and destroy it, capturing Zanramon and sending him to prison with his archnemesis, General Blanque of the Human Federation army.