As far as I was aware, Ninty charge rather large licensing fees for their console, which is why from pretty much the N64 onwards the only games that seem any good on Ninty consoles are Nity games (Zelda, Mario, smash bros Metroid etc etc.).

The only game I got for my Wii that wasn't a Ninty game were the Transformers games and Tatsunoko Vs Capcom. (twice)