Local co-op games that can be played with gamepads

I have an HTPC in the living room and finally got 2 wireless gamepads, so wondering what would be good local/couch/splitscreen coop games that work with gamepads?

I already know of Jamestown, Sine Mora and Kung Fu Strike. But the more, the better.

Something not too difficult that I could play with my wife would be a bonus... but I want to try the more harder games as well. :p

P.S.