While the title is a popular search term, it contains a major technical contradiction. New Super Mario Bros. U is a Wii U title, and the original Wii console is not powerful enough to run Wii U games.
: A hack that adds entirely new worlds, custom user interfaces, and music, with the added benefit of supporting the Classic Controller. How to Access These Mods New Super Mario Bros U Wii Roms For Wii-