What do you have? For what system or console?

I'll start. In no particular order:

Blazing Angels II
Lego Star Wars: The Complete Saga
Lego Indiana Jones
Lego Batman
Assassins Creed
Nascar 09
Medal of Honor: Airborne
Call of Duty 4
Stranglehold
Army of Two
Star Wars Legacy
Mass Effect
Shadowrun
Mercenaries II
Ghost Recon (GRAW2)
Ace Combat 6
Fuzion Frenzy II
Superman Returns
NBA Live 08
Rainbow Six Las Vegas
Rainbow Six Las Vegas II
GTA IV
Ninja Gaiden
Brothers in Arms
Timeshift
Spiderman: Web of Shadows
Spiderman III
Halo III
Battlefield Bad Company
Starwars The Force Unleashed

I think that's about it. I may have missed a couple... few... some. I have too many, lots, plenty of games.

Oh, all of the above are 360.