Most tutorials fail here. You cannot just drag the update files into the base folder.
Correct Method:
Alternative (Manual):
Copy the extracted content and meta folders to:
mlc01\usr\title\0005000e\10179500\
(Replace 10179500 with your Title ID. For NTSC-U, it is 10179500; for PAL, it varies). New Super Mario Bros Wii U Cemu UPD Download
Thanks to the ongoing work of the Cemu team (Vulkan backend, async shader compilation), the Wii U version of New Super Mario Bros. U now runs better than the original hardware:
Setting Up Cemu:
Loading the Game:
Configuration:
Update for Cemu:
Graphics and Controls: