Cyborg Superman, DCSH by Mattel
Cyborg Superman is also from the Reign of the Supermen/Return of Superman story, and he is one of the three Supermen who claimed to be the original Superman, saying he was injured so badly that he had to be joined with Kryptonian technology and become a cyborg to keep alive. In fact, Cyborg Superman is the villain of the story, and engineer of the cataclysmic event that cause Hal Jordan to become Parallax. Cyborg Supes has great power over mechanical equipment, and can transfer his consciousness to any machine, which he has to do to escape the returned Superman and his allies (including the aforementioned Hal Jordan).
I think Cyborg Superman is the coolest looking of the Supermen from this story, and I'm glad he wasn't totally destroyed in this story. Later, Parallax catches up with him and destroys him with constructs of all the people that died in Coast City when it was completely and utterly destroyed. Apparently that didn't do the trick either, as he later joins the Sinestro Corps in the Sinestro Corps War. I don't know what happens to him after that, as I haven't yet read SCW.
I'm telling you we're dealing with a Kryptonian Cyborg. Our Superman reconstructed.