Back on CYBERTRON, AUTOBOT RATCHET was the best mechanic and machinist around. The only thing that kept him from true greatness was his constant partying. Years of war and a series of tragic encounters with MEGATRON have tempered his good nature, leaving him with a melancholy edge and a sour bedside manner. He's still the finest medic the AUTOBOTS have at their disposal, but these days he's more distracted by his bad memories than his late nights