This method installs the game to your Wii U Home Menu or an external USB drive, providing better performance and native functionality.
To play on a modded Wii U, you typically use either Loadiine GX2 (for SD card loading) or WUP Installer GX2 (for installing directly to the Wii U Menu/USB). Method 1: USB Installation (Recommended) New Super Luigi U WII U ISO (Loadiine & USB) (USA)
Place the game files (usually .app , .h3 , .tik , .tmd files) inside a subfolder within install (e.g., SD:/install/New Super Luigi U/ ). : This method installs the game to your Wii
Insert the SD card into your Wii U and launch via the Homebrew Launcher or your Home Menu channel. : Insert the SD card into your Wii
: 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 runs decrypted games directly from the SD card. It is often slower than USB but useful for quick testing. How to Format an External Storage Device - Nintendo Support