So what do you do after you tire of turning into a massive ringed planet that eats other planets? You turn into a crab-like tank, I guess. This version of Unicron from the Cybertron series is a strange evolution of the chaos bringer, without any real scale cues to tell you how big (or small) he's supposed to be. Classic design cues like his curved spikes, horns and collar evoke the original Unicron. His Cyber Planet Key opens up the jagged dome in his chest revealing a nested missile launcher within. Unicron was packaged along with the Decepticons, though he's really a faction to himself. He was available in 2006.
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.
