It has been nearly a year since Super Mario Bros. Wonder side-scrolled onto the Nintendo Switch, redefining the 2D platformer genre with its psychedelic “Wonder Effects” and fluid online multiplayer. However, for users in the emulation and custom firmware (CFW) communities, the journey hasn’t always been smooth. From day-one graphical glitches to multiplayer desyncs and save-corrupting bugs, the game required several revisions.
If you have downloaded the 100% playthrough/DLC data, ensure the DLC NSP is installed correctly.
If you're a fan of the Mario series or platformers in general, Super Mario Bros. Wonder is definitely worth checking out. Even if you're new to the series, the game's intuitive controls and gentle learning curve make it easy to pick up and play. super mario bros wonder switch nsp xci update fixed
If you are playing on PC using Yuzu or Ryujinx, follow these steps to apply the update:
Best for: SX OS (legacy) or direct emulator loading. Update method: Repack the base XCI + update into a single “updated XCI” using tools like NSCB. Pro: One single file – no installation needed. Con: Updating a merged XCI requires re-building the entire file. It has been nearly a year since Super Mario Bros
Subsequent updates have refined how the game handles the "Wonder Effect" scenes, reducing framerate drops on both original Switch hardware and emulation.
To ensure Super Mario Bros. Wonder runs smoothly without crashing, you must correctly chain your base file and update file. For Nintendo Switch (Custom Firmware) From day-one graphical glitches to multiplayer desyncs and
If playing on PC, use the "Vulkan" API. The fixed files resolve the "Mii" data requirement that previously caused crashes on the title screen. Key Features of Super Mario Bros. Wonder
For the most stable experience, it is generally recommended to install the base game as an NSP or XCI, and then install the official update fix as a separate NSP file on top of it. The Essential Step: Installing the Update Fix