Well, one could try beating Jinpachi in Tekken 5 in Ultra Hard. And before you start, NO, he is not harder than Azazel. Why? Cause Azazel's defense stops in the middle of your combo (he tries to counter you) and he doesn't duck.
But nope, Jinpachi froze me and then gut-fireballed my face into next month.
Next: Speed Freaks. This game is my favorite and most frustrating kart racer I have played. Every time you find yourself at first place, the second driver WILL ALWAYS HAVE THE BEST WEAPONS IN THE GAME. Homing missile, Shockwaves, Missile Clusters and POPS. Some of them are even shot at the same time!
Resident Evil 4: They may not seem like it, but Salazar and his right and left arms are some of the worst enemies in ALL OF GAMING! Especially when you first see them. You have to constantly quick-time, shoot this guy, and switch guns! Do you know how many times I got eaten reloading? 7 times! And I lost another 13 cause the guy wouldn't DIE! I emptied 3 entire mags of magnums in his head and he didn't die! And after the 3rd magazine, he plastered me to the floor. Do you realize how many things you had to do at once?
And also, that Verdigo freak? That can only be shot in the head? Christ, anywhere else does 0. Nothing. And since he moves like a bullet, he can be pretty hard to shoot. Oh and he is impossible to kill the first time around. Nitrogen is a ***** to reach and it is not enough to dispose him the first time around, so you have to wait for 5 minutes for the lift to arrive! 5 minutes! And guess what? If he dies, you do NOT have to wait! That's logic.