Uncharted 3 (The multiplayer. I actually only played through the SP once, as it was no where as good as Uncharted 2's.)
Little Big Planet 2 (This game's magic wore off me quite a bit recently, but I've spent too many hours to admit I wouldn't go back)
Skate 3 (If you've played any Skate games, you will know why. There are just so well-crafted that they are simply fun to PLAY. A true video game in it's simplest form. I honestly think this game is one of the most underrated of the generation. I've gotten countless friends who enjoyed Skate games and don't like sports, better yet skateboarding. There's such a great balance between Simulator and Arcade that I've yet to see any other game pull off)
Star Ocean 3 (I have a save for each difficulty at the start of Vanguard 3 so I don't have to do the prologue again.
Deus Ex: Human Revolution
Ratchet and Clank 2 and 3.
That game sucked ass!!!!!!!!It had a weird atmosphere and the story was forgettable.I think it was about some bisexual people and there were some hippies.I couldn't even finish that game because of its weirdness.
Cross Edge. Almost any Disgaea game. Any Hatsune Miku: Project DIVA game. SD Gundam G Generation Overworld. Yu-Gi-Oh! 5D's Tag Force 6. CoD: BO2 (Offline and Zombies, that is, the online is not worth it).
http://card.psnprofiles.com/1/TwilightGundam01.png To All Noire (Neptunia)/Tsundere Haters/Dislikers: http://i.imgur.com/otleVRu.png Noire-sama/Tsundere FTW!.