Devastator and Protectron
Just to start you off with a little perspective, here are two of the robot warriors, Devastator (left) and Protectron (right). There's no good/evil distinction in the mythology of this toy; all of the robots are used by humanity to ward off some alien robot threat that is never depicted. Like the Starriors, each robot is about 11 centimenters (4.5") tall and has wind-up action! Awesome.