Thanks, I've managed to get Nintendont working now and some games are working like Mario shinshine, Luigi's mansion but Paper Mario and Metroid Prime would give me an error when trying to launch which is odd.
I've gotten Paper Mario working with no issues. Just make sure to enable "force 4:3" if you haven't. Though that should lead to visual glitches, not failure to launch. Try getting the Paper Mario and Metroid Prime isos from a different source, as nintendont is more picky about isos than dolphin.
Hey, I have similar queries to yours with regards Wii injection etc but no one seems to respond! Have you figured much out about it? Some Wii games work fine but some just go to black screen and freeze the Wii U. Do you know why that would be? I presumed I can inject any Wii game but that Wiki list doesn't have many games on it. Does that mean anything not on there won't work and I would need to hack vWii in order to play those (Wii Sports, Wii Play among others)?
The most likely culprit is the isos you're using. Try ripping them directly from your copy or downloading them from a different source. I've been able to get all the wii games I've tried working (granted, this is just a small handful of titles), so the issue likely lies with something on your end.