However, for those who have tried to run this massive modification on actual Wii hardware (via USB Loader GX, Configurable USB Loader, or Wiiflow) or on emulators like Dolphin, one question frequently pops up on forums like GBAtemp and Reddit:
| Feature | Standard WBFS (450 MB) | Newer 130 WBFS | | :--- | :--- | :--- | | | ~450 MB | ~130 MB | | Load Time (USB) | 4-5 seconds | 2-3 seconds | | SD Card Compat. | Stutters (Audio lag) | Smooth Playback | | Dolphin Emulator | Good | Excellent (Less RAM) | | Content Missing? | All levels | 100% of levels | newer super mario bros wii 130 wbfs better
So, where does come into play? The Anomaly: The 130 WBFS File The term "130 WBFS" refers to a specific, highly compressed , and scrubbed version of the Newer Super Mario Bros. Wii game image that clocks in at roughly 130 Megabytes (MB) in size. However, for those who have tried to run
If you are a fan of the Super Mario franchise, chances are you have already played (or at least heard of) Newer Super Mario Bros. Wii . Released in 2009 as a complete overhaul of the original New Super Mario Bros. Wii , this ROM hack has become a legendary "fangame" that offers 128 brand new levels, new power-ups, a new world map, and an entirely re-orchestrated soundtrack. The Anomaly: The 130 WBFS File The term
Whether you are playing on a real Wii in 2026, on a Steam Deck via Dolphin, or on a Wii U via vWii, always hunt for the variant. It is smaller, faster, and demonstrably better in every metric that matters to a retro gamer. Final Pro Tip If you already have a larger WBFS file (450 MB+), do not delete it. Use Wii Backup Manager to shrink it. Load the large WBFS, click Convert -> WBFS to WBFS (Scrub) . In less than 30 seconds, you will have transformed your bloated file into the coveted 130 WBFS format.
For the Newer Super Mario Bros. Wii community, the "130 WBFS" is considered the for archival and daily play. It represents the peak of Wii homebrew optimization—removing what is unnecessary while preserving every piece of the brilliant fan-made expansion.