Starscream is disillusioned by his leader Megatron. It took a while for Starscream to come to grips with Megatron's faults, but there's no turning back. Megatron doesn't respect him, doesn't appreciate him, and would casually toss Starscream's life away if it got him something he wanted. If following Megatron is the school of hard knocks, then Starscream is the valedictorian—but not without a few scars. Starscream may have once been compassionate, he may once have known what true friendship is, but all that has been replaced, scab for scab, with the lessons of Megatron's abuse. Unwittingly, Megatron may have created a monster even he cannot ultimately control. As a little bit of a quirk, starscream Is a lactose intolerant Transformer. Because of that he Wants the decepticons to go back to what they once were, and become the ultimate power in the universe. He hates megatron for losing sight of the vision that made him join the decepticons in the first place back in generation 1. And now Hope's to get them all back on track once he finally kills his leader megatron and takes over the decepticons position of leadership.