I hate lag and spammers.
I don't like lag in exit path for example. It makes me go slow ._.
I don't like spammers because they create the lag ._.

See what i did there? ^^

I hate misspellings and out-right incorrect grammatical English.

If someone is going to spend their time making a great looking and wonderful sounding game, why not polish it and have someone who knows English past the 10th grade write the script. Most games have story lines, no matter how shallow or in-depth they may be. So please, developers, polish your game. Thank you.

Post script,
I wouldn't mention it unless I was willing and able to do it myself.

You won't like me then pause because I'm ripe with grammatical errors when I don't review what I've typed.
I hate when you play a game and the graphics look like something a kindergardener would draw. I don't harp on graphics much unless they are truly horrible or it is a series and the graphics don't improve, stay exactly the same, or God forbid, Get even worse, and yes I've seen it.

Am I the only one who doesn't like aspects of a game that's barely used throughout?

I only remember the lock-picking mini game once in Sleeping Dogs...

Maybe twice, I dunno...

I hate hackers in games, that is another main reason I hate CoD. All those people with aim-assist and all those BS cheats. Or being able to fly and be invincible, it's really sad, either play the game right or don't play at all.

Hard to explain, but repetitiveness. I get bored pretty easy with a lot of games that carry on and on about the same thing. Like having to travel back and forth between places or having to fight the same enemy, or having to use the same gun kind of thing. But I guess that's something nobody would like, it's just the biggest deal for me.

I know what you mean. I hate that monotonous feeling when playing, I find it mostly in CoD and series that never add anything to the table. Hate it when there is a series and the next game has absolutely NO new fetures. Just the same recycled garbage that was fun the first time but boring the second. And yet people still buy it..

When the game is too short

i hate when im playing a fps game and its just unrealistic overall. it just really rustles my jimmies

When the game is too short

That and being too easy, too simple and repettitive etc.

A great example: Prototype 2. While in terms of gameplay, it was better than its predecessor, i finished it on normal difficulty in 1 and 1/2 - 2 days and having been killed no more than 10 times!

Another example: Star Wars:Force Unleashed 2. For the same reasons: too short and too easy gameplay.

i hate when im playing a fps game and its just unrealistic overall. it just really rustles my jimmies

Can you please define unrealistic? If you are "hard" on games, you may consider all of the Call of Duty games to be such. Also, unrealistic in what? In terms of gameplay( Like Call of Duty:World at War), or in terms of plot( like Singularity), or both(like Wolfenstein 2009)?