I heard that you can put wii u game isos on an external hdd plug em into a wii u and restart it, then it will ask to download that game. you can find an article like this easily. But the links i find have surveys (which dont work for me), or are really big (i can use big files on my 1tb drive but these games arnt to advanced to be 23.18 GBs!(tht was game and wario), and im afraid itll be a virus). And before you say its pirating, its not. i had some games that broke, that i purchased with money, and they werent backed up or anything, since i dont know how...