Released in 2006, Rollbar is a call-back to a Generation One Throttlebot character, but now with an orange finish. He turns into a Jeep Wrangler TJ custom with off-road tires and a chromed bull-bar on his grill. He is a redeco of the previously released Hound and Swindle figures in the Alternators line.
The combined form of the Universe Micromaster Aerialbots is Superion, an amalgamation of six robots plus their pack-in accessories that serve as connectors, head, and extremities of the gestalt warrior. While in Japan, the original source of the design ( Sixwing , 1992) was available in a collected set, this combiner needed to be purchased one bot at a time in the 2007 Universe release.
