Internet Archive - Wii U Roms

Pro-preservation advocates note that:

Cemu is a highly sophisticated emulator originally developed for Windows, with Linux and macOS builds now maturing. It allows you to play Wii U games at 4K resolution, 60 frames per second (if the game supports mods), and utilize modern controllers. wii u roms internet archive

and Super Mario Maker : Key pillars of the Wii U library preserved in multiple regions. Pro-preservation advocates note that: Cemu is a highly