You have no idea how hard this will be. No order:
Burnout Paradise (360)
Braid (360)
Castle Crashers (360)
Advance Wars: Dual Strike (DS)
Bleach: The Blades of Fate (DS)
Runners-Up: Portal(360), Hotel Dusk: Room 214(DS), New Super Mario Bros.(DS), Madden 09(360), Kameo(360), Bioshock(360), Castlevania: Dawn of Sorrow(DS), Guilty Gear XX: Accent Core(Wii), Crush(PSP)
You see! I told you it was too hard!