I've been looking for a two player game I can co-op with my girlfriend and can't seem to settle on anything we both feel good about. I was thinking Insanely Twisted Shadow Planet would probably work well, but any recommendations would be welcome! Basically, we're looking for something we can both play, and equally (not asynchronous), in a co-operative format. Preferably with controllers?
EDIT: Nothing against Borderlands 2, by the way. We've just already played a lot of that and loved it.