Batman: Arkham Asylum
I love that first encounter with Scarecrow, its creepy as hell leading upto the point of your first full blown hallucination. The shadows on the walls, the weird floaty camera angles, Gordon dead, the morgue - oh the f**king morgue "Get out, GET OUT, GET OUT, GET OOOUT". Ok im going.................get me the f**k out of her.....what the?
Brilliant.