Game: Transformers: Fall of Cybertron
The leader of the Dinobots is the defenition of brute strength and raw power. Instead of guns, he opts for a more intimate method of killing by using a sword. Once provoked to a certain level of anger, he transforms into a Tyranasaurus Rex, the most feared and dominant pre-historic beasts to ever walk the earth. Combine all that badassness with a hellish temper and the ability to breath fire and you have a really bad day if you're on the wrong side.