hello there are you selecting to emulate the wii u GAMEPAD or wii u pro controller? if you are selecting wii u pro controller, that might be the issue if that still doesnt work then you only have 2 options: 1. install the network client on a pc, at the cost of a lot of input lag. i lost an online smash game because the controller disconnected. (outdated option) 2. spend $20 and follow this tutorial, that is guaranteed to work with no lag, i just tested both of the games you have problems with, and they work. (up-to-date and recommended option, despite of having to make a purchase).