Hmmm. Ok:
-Uncharted 2: Well, it's like Yahtzee said. It's pretty ridiculous to have Drake (not to mention Elaina) casually gunning down hundreds of mercenaries. It's kind of hypocritical, and doesn't really fit the character. Also, I wish the cause of the train crash had been better. It's a lame cutscene!
-Mass Effect 2: The resource gathering system sucks. That's really my only complaint. Oh, wait. The whole "Genetically engineered perfect fill in the _____" origin story gets used a few too many times.
-Fallout 3: While it is huge, immersive, and quite addicting, that doesn't change the fact that the majority of the world is dirt. I know that's realistic, but is realism really high on the Fallout series To-Do list? You fight giant cockroaches.
-Red Faction Guerrilla: There's too many fucking rules, not enough ammo, and destroyed buildings don't respawn, so once you've destroyed everything, there's not much else to do.
-Bad Company 2: The shotguns are WAY overpowered! Each individual bullet has the power of a well-aimed sniper shot and the range of an assault rifle. THAT IS NOT HOW SHOTGUNS WORK.
Shadow of the Colussus: Had a really shitty ending. YEAH, YOU'RE DAMN RIGHT, I SAID IT!