From 2005 comes this pair of toys available as a set exclusively at Wal-Mart - Optimus Prime and Prowl. Both are redecos of low price-point Robots in Disguise "Spychanger" toys, with Prime redone in yellow, and Prowl recast as a "Fire Chief" Chevrolet Caprice. There are so many Prowls in the Universe 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.
