Prowls the perimiter of the Terrorcons' lair looking for trouble -- and hoping to find it! Then he can show off his razor-sharp teeth, piercing pronghorns, and steel-shredding claws. Has flame cannon and flame breath in creature mode, armor-piercing rocket-grenade launcher in robot mode. Combines with fellow Terrorcons to form Abominus. Unnerved by small creatures like mice, insects, and mini-droids.
Sinnertwin appeared in the following 14 comic books:
Sinnertwin appeared in the following 18 cartoon episodes: