Defensor is the sum of six Autobot Micromaster Protectobots: Groove, First Aid, Hot Spot, Prowl, Red Alert, and Streetwise. Defensor's personality, like that of his components, is unknown. Of course, being a combiner composed entirely of Micromasters, Defensor is only of slightly larger than average height, as Transformers go. (Unlike Sixturbo, to whom he is nearly identical.) However, this size boost seems to be enough to let his components go toe-to-toe with opponents they could not handle individually.