I'm always down for a mecha RP. As much as I love combiners, it wouldn't make sense in the context of an individual tournament, unless this is team sport.

Also, is this going to be mostly martial arts style, ala G Gundam, where combat consists mostly of punching, kicking, and melee weapons, or is it going to be full military, with rifles, bazookas, missiles, what-have-you? Will there be remote-operated weapons (ie. funnels, bits, etc.)?