The label "brat punk" isn't completely inaccurate. Rumble is your basic street punk. Small, but always acting tough as a cover. Not exactly the most subtle of Soundwave's spies, but what he lacks in discretion, he makes up for by being the brawler of the group. He talks tough because he is tough. Quick-tempered and of a generally mean disposition, he follows Megatron eagerly, as the Decepticon leader lets him indulge in destruction. Rumble has a tendency to toss out a taunting rhyme at his enemies and is, according to Brawn, a "jerk" (or at other times, a "sawed-off nerd").