: If using an external drive, plug it into the Wii U and format it via System Settings > Data Management . Prepare the SD Card : Create a folder named install on the root of your SD card.
This method installs the game to your Wii U Home Menu or an external USB drive, providing better performance and native functionality. New Super Luigi U WII U ISO (Loadiine & USB) (USA)
Insert the SD card into your Wii U and launch via the Homebrew Launcher or your Home Menu channel. : If using an external drive, plug it
Place the game files (usually .app , .h3 , .tik , .tmd files) inside a subfolder within install (e.g., SD:/install/New Super Luigi U/ ). : : If using an external drive