I have a few, and they're all because I'm stuck, so any help you can provide would be a GODSEND:
FFXIII: Love the game, but I cannot beat the second battle with Barthandelus, it's just impossible for me!
Atelier Iris 2: Slaith's Reincarnation, he's just won't stop owning me and lowering my defence.
DMC 3: I'm stuck on Nevan, but I don't need help, my controller is crappy.
Disgaea 2: Gotta do that first mission in that Alchemy city with Enemy boost +50% EVERYWHERE and there's no good levels to grind.
That's about all I think of ones that I'm stuck on, one's I need to finish but can't be bothered or whatever are:
Atelier Rorona
Cross Edge
Star Ocean: The Last Hope
FFVII: Crisis Core (which makes me sad because Final fantasy is one of my favorite series)