The Wii U review thread: Console, games~ They are coming .... Reviews in OP! Sports game does great on Wii U, IGN gives NBA2K13 a 9.1!! Trusted site Joystiq gives Zombi U a 4.5/5!

[freebs2]

I guess scores tend to be inflated in some genere while deflated in others.
80 is a good score for a party game like Nintendo Land, if it we were talking about an action game or an FPS, then I would be worried. As for Mario, since it's not graphic intensive or online intensive and it's not an indie game either, I'm not expecting anything more than 85-90.