anything that can be runned by nintendont is compatible with every controller suported by nintendont.Whoa whoa whoa. Wait a minute. Back up.
Let me see if I'm understanding this correctly. I'm a huge Mario Kart fan and my Wii U runs every version except Mario Kart 7 which I own on 3DS.
Are you telling me that GP and GP2 will not only run on Nintendont but can be played with any controller that Nintendont supports, i.e. a GameCube one via the Smash USB box or with the Mayflash adapter that hooks a GC pad into the Wiimote?
Because if so you just made my day, and I have two more Mario Kart titles to add to my collection that I haven't played in years to run through this weekend. :-D