A trip to the Arcade....
I've always enjoyed Arcade titles vastly for a number of reasons. First and foremost being, the time differentiation. Most retail titles average a necessary time spent of 40 hours or so to obtain all the gamerscore(with obvious exceptions; Avatar, King Kong, etc.). The average Arcade title takes me around 10-20 hours of invested time. Exceptions to this exist, but far enough spaced that it's not as intimidating, so to speak. Retail titles often offer more of a meaty substance, but with a daughter and my new job, it's hard to be able to look into spending a substantial amount of time into any one title. Anyhow, with the completion of Diablo III, Dead Space 2, and Dishonored pending, I believe it will soon be time for me to start knocking these out again. So without further ado, the list.
DeathSpank: Thongs of Virtue
Far Cry 3: Blood Dragon
Guardians of Middle-Earth
Puzzle Bobble LIVE!
Matt Hazard: Blood Bath and Beyond
Quake Arena Arcade
South Park Let's Go Tower Defense Play!
Sega Bass Fishing
Sega Vintage Collection: Monster World
Texas Cheat 'em
Hell Yeah! Wrath of the Dead rabbit
MTG:DOTP(If they ever put the DLC on sale...)