Runamuck and Runabout are the Battlechargers, a nearly inseparable pair of hooligans. Runamuck in particular likes to make things explode, heh heh, and loves a good wreck. He has been known to wander around junkyards, fascinated by the carnage of twisted metal and shattered glass. This only makes him want to blow more enemies into heaps of slag. Heh heh, slag. He does not consider it beneath him to indulge in petty acts of vandalism, and thinks a good insult sprayed on a clean wall is a Decepticon victory, heh heh.
As a Battlecharger, he's well-equipped to do it. He'll speed up crowded highways at his 180 MPH top speed (at which he can go up to 600 miles), smashing everything in his path, without regard to his fenders. Then he transforms into robot mode (in less than half a second) to use his prized tool of wholesale destruction—a friction rifle.
This terrible weapon does little damage, but it leaves a field around his target that enhances molecular heating from friction. With the slightest move, a catastrophic buildup of thermal energy bursts his foe asunder in a shower of burned metal fragments and smoke. The field wears off in five minutes, if the target is able to stay absolutely still for that long. Usually they just end up as a big mess. Runamuck loves a big mess, heh heh.
Runamuck is also equipped with short-range rocket boosters to help him jump over obstacles, but strangely enough, he is terrified of heights.
His alt-mode is a Pontiac Firebird Trans-Am.