Recently Added:
Eat Lead: The Return of Matt Hazard
Puzzle Quest: Challenge of the Warlords
Silent Hill: Downpour
Haven't played the last two on the list so I can only vouch for Matt Hazard, not so much in that it's a great game (mechanics are a bit clunky and controls are kinda rough) but I remember loving the humor it poked at gaming in general. Safe to say there are Duke / Mario and JRPG references to incite some chuckling here and there.