cokebabies
Super Freak
Even when I was on my second playthrough, I forgot about him and he scared me to death. I was like WTF?!?!
There are a few moments in Bioshock where, despite playing it countless times, and knowing these things will happen, they still freak me out.
Like the dentist, when the room steams up and he's there when you turn around. Or when you use the Power to the People machine in Fort Frolic, and when you turn around the frozen person is standing behind you.