scariest for me was Silent Hill. But my best reaction to a scary moment was in Crysis. The first time you are attacked by one of the nomad-looking things I was drinking a soda, thankfully the spray missed my laptop......
Some say that he is allergic to a fungus found only between the toes of Corsairs,
and that he is oblivious to 98% of Liberty Law. All we know is... He's called the Busdriver!