I don't know if you guys have heard of Derren Brown over in the US.
He's a british dude who does stuff on TV to do with psychology/mind reading/hypnotism etc. A bit like David Blaine.... But he doesn't do magic tricks..
Anyways, i was just watching a program of his where he creates this zombie game... He basically hypnotises someone into thinking they are IN the game... it's well worth watching!!