When Megatron steps away Tarn instantly tries to shoot to his feet, desperate to gain some sort of footing in the situation. The dramatic loss of weight on his right side sends him listing, unable to keep his balance until his sensors recalibrate. After a few seconds he is able to charge forward, throwing his weight against Megatron's chest in a last ditch effort, a purple hand coming up to grab at his face, going for the unbroken optic.

"It isn't your place to decide, Megatron. Not anymore."