Pulver, David. GURPS Mecha, Steve Jackson Games.
General background (Cybermech Damocles); various mechs used; plot to kidnap people for their brains.
Shiftworld soundtrack Vol. 2. Track 16: Simple formalité, Stickbuzz.
Martial law in Paris.
Various animes, including Cowboy Bebop, Macross Plus, Neon Genesis Evangelion, and Sailor Moon.
General inspiration, especally for anime styles of expression, and giant robot battles.