The Wii is not forward-compatible. It cannot read Wii U "WUD" or "WUX" files.
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.
The original Nintendo Wii cannot play Wii U discs or digital ROMs. The Wii U was a successor with significantly more RAM, a more powerful processor, and HD output.
Conversely, the Wii U is fully backward-compatible and can play original New Super Mario Bros. Wii discs or ROMs via its "vWii" (Virtual Wii) mode. 2. The Best Alternative: "Newer Super Mario Bros. Wii"
The Wii is not forward-compatible. It cannot read Wii U "WUD" or "WUX" files.
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. New Super Mario Bros U Wii Roms For Wii-
The original Nintendo Wii cannot play Wii U discs or digital ROMs. The Wii U was a successor with significantly more RAM, a more powerful processor, and HD output. The Wii is not forward-compatible
Conversely, the Wii U is fully backward-compatible and can play original New Super Mario Bros. Wii discs or ROMs via its "vWii" (Virtual Wii) mode. 2. The Best Alternative: "Newer Super Mario Bros. Wii" a more powerful processor