Awesome! World of Goo also works great if it's sideloaded, though a mouse is required.
Looks like someone deleted the entire apps page. I tried to restore it from a revision. Apparently there's supposed to be some sort of "restore this revision" option to make it easy, but I don't see it, so I had to just copy/paste and get it as best as I could.
Looks alright now I think.
Edit: someone fucked it up again. oh well.
Found this on Nvidia Shield forums. As you can see most games when side loaded will work with a controller, they just won't appear in the launcher. You can use sideload launcher to launch these apps.