Once you boot into Newer Super Mario Bros. Wii 130, you’ll notice:
The 130 version is known for its brutal difficulty curve — some levels are kaizo-style precision challenges. Save often, and use the portable save feature on your WBFS drive to maintain progress across multiple Wiis.
Creating Newer Super Mario Bros. Wii yourself is tedious. The official method requires: newer super mario bros wii 130 wbfs portable
A pre-built WBFS portable file skips all of that. It is a ready-to-run image that has already been:
Disclaimer: You should only download pre-built files if you own a legal copy of the original NSMBWii. Piracy is illegal; modding your own backup is not. Tip: The Wii Remote emulation can be tricky
WBFS (Wii Backup File System) is a filesystem used by USB loaders to play Wii games from an external hard drive or SD card. Why does this matter for Newer?
Having 100% completed the original NSMBWii and Newer on a Nintendo Switch (running Android + Dolphin), here is the verdict: Once you boot into Newer Super Mario Bros
The Good:
The Bad:
You can actually play Newer on a Wii Portable (a custom handheld console with a cut Wii motherboard, screen, and battery).
Here is the step-by-step guide for different "portable" scenarios.