4. Dead Space 2 Ive Got Some Eye On You
http://youtu.be/9crCGMh4j9g Whats worse than having a huge injection in your pupil. Well this. Speaking as someone with a strange, indefinable phobia of human eyes either being touched or even being opened too wide the above set-piece damn near finished me off. I guess it goes without saying, but failure here results in game over. It also results in never being able to unsee what you just saw.