Earthbound. I absolutely loved that game. Shame it can't pull a Jesus and come back from the dead. And no, Ness being in Brawl does NOT count as a new Earthbound game.
Impossible difficulty modes (imma lookin' at YOU, COD!). Why make an amazing game and such, then make us play through it in complete realism, like death in 3 shots? If we wanted realism, WE WOULDN'T BE PLAYING GAMES, NOW, WOULD WE!?
Also, the nagging voices that force you to rush into the next area to make 'em shut up. "Hurry up, you ain't gonna make it!" Yes, I am. I'm gonna make it in my own time, so DON'T RUSH ME!
I got to the the point with Team Fortress 2 where I knew practically every detail about the goddamn game. For example, the Scout has 7 brothers and his mother still retains her figure, the Medic's Oktoberfest taunt was originally removed because it resembled drug use too much, and the only class to have a known home is the Sniper, who lives in a camper van? (Only after typing this has it dawned on me that I'm incredibly sad.)
The Half-Life 2: Episode 2 ending was one of the only things in gaming that brought me close to tears. I'm not sure if was the actual death, the fact that I'd known him for 3 games or Alyx's reaction, but it had a bigger effect on me than a lot of movies I've seen.
Another random thing about Portal: after you escape, on the wall of one of the side rooms, you can see a picture of a "little, good jellyfish", and more famously, in a different room is the "big, bad jellyfish".
Any experience with a cocky 8 year old on Xbox Live. Y'know, the 'camp with an RPG, BARELY scrape a kill, have a teabag party and act your superior' type kids. The worst part is I always hear them in the lobby after the game saying, "that guy f***in' sucked! I owned him like 20 times with a pistol. What a n00b!"