“Of course, the real unique elements are the game controllers. I use a Novation flight simulator joystick to control any number of synth parameters, (generally pitch, filter cutoff, and LFO speed,) but these things become rather heavily scaled so that the controls are very specific for each iteration.
“I use a Microsoft Sidewinder gamepad as an alternative sample trigger device. I find that, being a rather mediocre keyboard player, I am in some ways better at controller combos than piano fingerings.
“I use a Wii-remote as a controller for vocal delay glitching - as I wave it about I can capture words or phrases, have them repeat, and then speed them up and "cut them" on the fly via the internal gyro.
“I also recently integrated a MIDIfighter, a box with gyros and 4 banks of 16 arcade style buttons that can be mashed about rather violently with interesting results.”