Grand Theft Auto IV - Four-Leaf Clover, the museum heist mission (twice), anything involving Brucie
Fable II - Being able to kill the final boss during his monologue, Chesty
Grand Theft Auto: San Andreas - Returning to Liberty City, the casino heist, FINALLY BEATING PILOT SCHOOL, all-golding driving school
Fallout 3 - Gary
Metal Gear Solid 3: Snake Eater - Finally killing that bitch, The Boss ("SEE THIS SCAR"), conversations with Sigint
Guitar Hero II - Beating FALL OF PANGEA
Spyro the Dragon - Beating every other level 100%, only to be too much of a pussy to do Dark Passage
True Crime: New York - Shoving guys into a fucking alligator's jaws
Metal Gear Solid 2: Sons of Liberty - Naked Raiden fapfapfapfapfapfap
Grand Theft Auto: Vice City - FINALLY BEATING HILARY IN A RACE
Red Dead Redemption - Killing my first Sasquatch and getting hat achievement oh yeah
Fable III - Saving everyone while still being loved by the people, even though I fucked them over half the time (also making Page butthurt)