Played the Thrasher demo finally. It's pretty cool, worth ~20 minutes. Sort of like a bullet hell but you just run into stuff at high speed rather than shooting stuff yourself. Reminds me of the ancient flash game fl0w a bit. It's purely seated and you move your worm thing with the laser pointer on one controller which sounds lame at first but once you get into it it feels really fluid, more like conducting or slashing a saber sort of.