If you were fortunate or diligent enough in your blind-box collecting of the 2004 Micron Boosters, you could assemble Frenzy from Filter, Damper and Brake. Frenzy the combiner is a redeco of Energon Perceptor. She was later renamed Heavy Metal by the official collectors' club in 2007.
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.
