One of my buddies that I did it with that night started doing it every once in a while and he did it once while playing Halo.

Just some back story, this guy was awesome at halo. Like, the bomb. Best I've ever seen. We'd always have people come over to play with us and he'd just dominate everyone.

Well, when he played Halo on acid that time, he started seeing shit in the game, and now even if he's completely sober he sees stuff and it fucks him up, and he completely sucks at the game.