Bad guys I hate

So I started playing HL2. Probably not a smart idea since I have midterms in like 3 days.

Anyway, I need to make a list of the bad guys/enemies/whatever that I really hate in a game.

1.) The Flood (Halo)--> every time I play Halo and these guys show up, I always scream. I even have to stop playing and leave to do something else 'cause they were getting on my nerves.
2.) Headcrabs (HL2)--> as creepy as the Flood, but not as bad. At least I can hear them before they pop up. It's still a pain to kill 'cause they jump for your head and you can't really shoot them at that point.
3.) Alma and miscellaneous ghosts (FEAR)--> FEAR will forever be the creepiest game I ever played in my life. But now, these ghosts/spirits/whatever would love to pop out at you when you're so tuned in to the game 'cause you're trying to look out for human enemies
4.) The Apprentice (Soul Calibur 4)--> always take me at least 20min to kill, 'cause this guy is just freakin' good. Wonder what he's like in Force Unleashed
5.) Vampire chick (DMC3)--> imagine the frustrations when I got her down to one last attack and she uses her kiss of death on me.