Twin Twist will sink his drills into anything, tearing it to shreds at the smallest excuse. He loves violence and fighting as much as your average Decepticon, full of fury and the desire to show off just how much destruction he's capable of doing. Optimus Prime sometimes worries about his uncontrollable nature, but no one can argue that he isn't an effective warrior.
He's a member of the Wreckers.
His alt-mode is a Drill Tank.