Side Burn is a reuse of a mold that date's back to 2000's Car Robots line in Japan, 2001's Robot in Disguise. He turns into a Dodge Viper with a hot-rodded engine block. The robot mode wields the car's hardtop as a shield, and the bumper turns into a cross-blow like weapon. This WalMart exclusive was available in 2004.
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.
