My friend got it today... I had never played it before... my brain hurts. Really tough to grasp whats going on at first, then you get used to the mechanics, and you forget everything that ever existed. Like seriously, I don't remember what happened for the last 3 hours, other than nonsense babbling and intense concentration. Really depends on player communication. Some of the levels are pretty damn tough. Toward the end I realized I was just doing things I didn't understand. I just knew how to do them... weird as hell. Anyone else play it?