Plenty of crap pisses me off.
A lack of proper music; This is one thing I hate about Final Fantasy and some other games, you're in some huge, dark cave, filled with enormous monsters that will rip you to shreds just by looking at you, with a boss that'll tear you the hell up, yet there's this happy happy "YAY RAINBOWS AND FARTING PUPPIES!" piece of filth tune playing in the background, what the hell? It makes no sense whatsoever.
Enemies who constantly shoot when you have nothing but swords and limited spells; This was something that annoyed me terribly in Drakengard, there would be a constant amount of archers who do nothing but back up and shoot when you're busy trying to kill someone else, and when you go to kill them, there was always another two spread out shooting at you, pausing you only to get shot again afterwards.
Constant appearing of cars; this happens to me a lot when I'm playing GTA, cars usually just act normal and fine when I'm doing nothing but speeding around the area, but the very moment I have to keep a car in tact for a mission or I have to get to some place in time, every damn car the game can process appears just to slam into mine and box me in, good grief it's annoying trying to keep a car clean of dents when there are nine cars barreling down the intersection and slamming into the hugest pile up ever.
A lack of just fighting modes; One thing I love to do in fighting games is to just constantly fight over and over and over again, so far the only game I've ever played that has something that fills that need is Bloody Roar 4, where you pick your character, pick your opponent and stage, and then just fight battle after battle after battle over and over again, sadly other games lack something like that where there's no waiting after a battle, it just keeps going on and on.
Attempts at being offensive; I personally love GTA, the first three adaptions were great, but when Vice City came along Rockstar just went out with "People find us offensive anyway, LET'S USE THIS AS A GIMMICK!" and just forced it, which just made the games lose their appeal and atmosphere instead of it just being a game meant to be fun that just happened to of caught a lot of flak.
Unlucky random battles; One thing that always annoyed me with Final Fantasy was how whenever I wanted to get into a random battle, I'd have to run around in circles for minutes at a time waiting for one to finally appear, yet whenever I'm on deaths door and trying to get a save point, bam, a random battle after every other step, instead of when I actually need to fight.
Block whores; Another thing that annoys me with fighting games is how ridiculous the AI gets with blocking, Soulcalibur III is a prime example of this, I can kill off the first two opponents just fine in arcade mode, yet every battle afterwards the opponent spends 90% of the time in battle blocking, so I wait there for them to attack so I can counter, and they just stand there, try attacking again and they just block yet again. Same reason why I despise Ryu from Street Fighter, that's all the AI ever does with him is a nonstop block.
Love cannot save the world; Finally one last thing I hate about a lot of games (Mostly FF again) is how every damn thing is revolved around 'love', "THIS IS MY STORY" "I'm in love with you..." "IF WE GOT MARRIED WHO WOULD BE THE MAN?!" "I want to be in love... Waaaah..." "WAAAAAH...", no, shut up, no one cares if after the credits roll your trailer's going to be rocking back and forth, shut up and just, kill somebody already, damn.