Well I tried yet another game on ouya, and this time it's Dead Effect. Side loaded it from googe play store. Not sure how many people knew, or tried this, but it for the most part is completely functional with the ouya controller. Only thing that can't be done is navigate menus with it. Those are navigated via touch pad or usb mouse. Even the game recognizes the controller when going into game pad options.

It's clearly noted on the top what type of controller is in use in that menu, and is already seemingly pre-configured for use in game. Anyways it should go without saying that this game needs quite a bit of free memory to download and install. I'm not certain off hand of the exact download size, but I know it's in the high 300MBs. It runs quite well on the settings it's already set on so no adjustments need to be made in those regards.