It may seem unusual for such a high price point figure as Omega Supreme to have a redeco'ed double in the same assortment, but business was booming in 2005, and toy shelves needed filling. The white and blue deco is a nod to the "Guardian robots" from the original 80s cartoon, of which Omega Supreme was part of. As a redeco of Supreme, he has all his toy gimmicks - turning into a train and battleship, and being able to combine with Optimus Prime, and having a Headmaster-style unit (in this case, named 'Guardian.')
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.
