To dump your legally owned Wii U games for use with Cemu, you typically use homebrew tools on a real Wii U console.

Basic process:

1. Install homebrew on your Wii U
2. Use a dumper tool like disc2app or WUP Installer-compatible dumpers
3. Copy the dumped game files to an SD card or USB drive
4. Transfer them to your PC
5. Load the game in Cemu

Make sure:

• Your game updates and DLC match the game version
• Keys and game files are dumped from your own console/games
• You have enough storage space, since Wii U games can be large

You can find setup guides and compatibility info on the