Hi everyone. I'm looking for the name of a TV cartoon, probably Japanese. The main character was a teenage boy who had survived from some kind of attack in the outer rings of Kronus or something like thst. Since then he had possessed the ability to transform himself into a robot-warrior (Do not be confused, it's not Robot Warrior cartoon) and fight the bad guys, but every time he was transforming his robot nature was replacing his human one and it was getting more and more difficult to transform back to human.
