But there’s a legal gray area. Sharing NSP files is piracy. However, dumping your own NSP from a hacked Switch is protected in some jurisdictions as fair use for backup purposes. This tension makes Odyssey a case study in digital rights. The NSP isn’t just a file — it’s a portal. For most players, it’s simply the format that gets Odyssey onto their Switch. But for modders, speedrunners, and game historians, it’s the difference between playing a masterpiece and deconstructing it.

As Nintendo moves to the Switch 2, the Odyssey NSP will likely remain a benchmark: a dense, well-organized digital release that continues to inspire creativity years after its final patch. Dump your own copy using a modded Switch and tools like NXDumpTool . For mods, check out GameBanana or the Mario Odyssey Modding Hub Discord.

By [Your Name]

When Super Mario Odyssey launched in October 2017 for the Nintendo Switch, it was hailed as a return to the open-ended, secret-filled level design of Super Mario 64 and Sunshine . But beyond Cappy’s capture mechanic and the vibrant kingdoms, a quieter revolution was happening behind the scenes — in the file format known as NSP. An NSP (Nintendo Submission Package) is essentially a digitally signed container for Switch games. Unlike a physical cartridge dump (XCI), an NSP is what you download directly from Nintendo’s eShop. For Super Mario Odyssey , the NSP contains everything: the executable code, assets, sound files, and update patches.