NSP stands for — the native digital format for Switch games, identical to what you'd download directly from the eShop. Unlike XCI (cartridge dumps), NSPs are often smaller, update-friendly, and designed for direct installation on custom firmware (CFW) environments like Atmosphere or SX OS.
: Play with up to three friends simultaneously. new super mario bros u deluxe nsp high quality
The Deluxe version of the game offers several new features and improvements over the original: NSP stands for — the native digital format