Grimlock is very aggressive, even more so than Cliffjumper. How he differs from Cliff is that he will attack anything, while Cliff only goes for decepticons. Grimlock is also incredibly strong. He can lift 200 tons without straining a servo. However, as he kept destroying everything, Jolt put several restrainers on him. Grimlock is also stupid. He makes up for it in combat ability though. Some say he is more suited to the decepticons, as he sees weakness as a crime. However, when push comes to shove, Grimlock will always fall on the right side of the fence.