Plasma bomb

There's a reason why Trypticon's the ultimate Decepticon warrior. He's the size of a city (most of the time), he's all kinds of powerful, and is essentially, a walking, talking arsenal. One of his myriad of devastating weapons include his heat-seeking Plasma Bombs which he shoots from his mouth. With them, he's able to reap all sorts of destruction before he's inevitably thrown into an ocean.