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What's New: Updates generally ensure maximum compatibility with the latest Nintendo Switch system firmware and smooth out any minor frame rate hiccups in local co-op modes. A Note on NSP Files
Perfect for Portable Play: Because the levels are incredibly quick (often lasting under 30 seconds), it is an absolute perfect match for short commutes or quick handheld sessions on the Switch.
Portability: As a digital title or physical cartridge, it is fully playable in handheld, tabletop, or docked mode on any Nintendo Switch model. Where to Get It
In the Nintendo Switch homebrew and emulation community, the term NSP (Nintendo Submission Package) is widely used.