Silent Hill 4. I'm an absolute devotee of the Silent Hill series, and while I still think 2 was the best, 4 is by far the most frightening. It introduces a new 1st-person element whenever you return to the apartment room, and about halfway through, the nightmares of the Silent Hill reality start bleeding over into your room. Definetely got a lot of shock value, as well as just plain fun.

Wait till your refridgerator gets possessed... :shiver: