This is going to be embarrassing:
Owned and Completed:
Dead Space
Guitar Hero 3
GT5

(as much as you can complete it at least)
Infamous
Killzone 2
Little Big Planet
Metal Gear Solid 4
Ninja Gaiden Sigma 2
Resistance 2
Resistance
Rockband (again, as much as you can complete it)
Uncharted 2
Uncharted
Devil May Cry 4
Ninja Gaiden Sigma
Gears of War
Gears of War 2
Bayonetta
Valkyria Chronicles
Final Fantasy XIII
God of War Collection
God of War 3
Heavy Rain
Batman: AA
Mass Effect 2
Dragon Age: Origins
Lost Odyssey
I'm not even going to bother trying to list my PS2/1/Gamecube/Wii games.
Owned and not completed (and is the type of game that can be completed):
Disgaea 3 (too huge to comprehend)
Grand Theft Auto 4 (got bored)
Lair(This is actually nowhere near as bad as people made it out to be, especially now it's had the controls overhauled in a patch, will complete one day)
Mirrors Edge (got frustrated, too difficult to tell where you're meant to go when in a rush and it involved a lot of trial and error: the worst kind of game design)
Ratchet and Clank: Tod (great little game, will complete one day. I stopped playing it because it didn't have trophies and i got it in a time where i actually gave a toss about said trophies. Now i look at it knowing that trophies/achievements aren't important to me in the slightest i have an overwhelming urge to play it)
Motorstorm: PR (Just too damn hard towards the end)
Kameo (One day i'll give it a proper chance... one day)
Blue Dragon (Utter dross)
Halo 3 (Overrated imo, at least the single player is, it's good in coop but now i've finished uni there's no one to play locally with anymore and i hate every randomer i've met on Live! so shant be doing online coop any time soon)
Forza 2 (Played to death, but as many of you know it's just a huge game, unfortunately got bored of grinding the same races to afford cars for the higher tiers, good game overall though)
I hate selling games
