Roller (G1)
Roller is a Autobot scout car in Generation 1 continuity.
It's is Optimus Prime's most unique but least commented upon feature that his body is composed of two autonomous units.
Optimus Prime's auxiliary "Prime" module, also known as Roller, is a small cart-shaped device that he uses to unobtrusively slip behind enemy lines. He can maintain radio control over it at distances up to 1200 miles. Having Roller present somewhere is like being there himself. Roller "speaks" in a series of electronic beeps and whistles.
Although Optimus Prime can function as three independent modules, injury to any one of the modules is felt by the other two. Roller is particularly vulnerable, especially in the behind-the-lines situations in which he specializes.
Combat Deck
He can operate by remote-control his Combat Deck module up to a distance of 1500 feet. The Auto-Launcher mounted on the Deck can use a variety of artillery and radiation beam weapons, including most of those used by his fellow Autobots. The Launcher also includes a highly dexterous grapple-arm which allows it to load itself and change its weaponry. The communications disk antenna mounted on the launcher provides a link between Optimus and all his fellow Autobots within a radius of 50 miles. It can be adapted to a satellite hook-up that increases its effective range 10-fold.
Apex Bomber
Prime formes his armor from his roller drone
Early Origins
File:Barrelroller g1.jpg Barrelroller, partner to Orpion Pax.
Battlestars
Roller's is apparently "one tough little autobot", and he gets a cool upgrade in Battlestars.
