The big bruiser bot of the Maximals is back, now upgraded into a Transmetal form. In this version, he still turns into a rhino, albeit a mechanical one. And the rhino has a secondary mode with treads and skids, becoming a strange hybrid rhino half-track vehicle. Rhinox was available starting in 1998.
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.