Dead Island is pretty darn good. Like a more serious (despite the electrified machete, it's a deadly serious game) Borderlands+zombies, mechanics wise and style wise.
Purna seems a bit OP for Co-Op, though.
also, Disgaea 4 is as deliciously ridiculous as its predecessors and I love it for that. Although there's enough subtext between Valvatorez and Fenrich (the vampire main character and his werewolf manservant) to fill a thousand thousand fanfics.
I 'unno if that's a bad thing or not, it's certainly amusing.