In simple terms, an NSP is the exact digital format of a game as downloaded directly from the Nintendo eShop. When you purchase Mortal Kombat 1 digitally from Nintendoβs servers, the file delivered to your SD card is an encrypted NSP. This is different from the format, which is a raw dump of a physical game cartridge.
It is legal (under specific DMCA exemptions in the US) to format-shift your own game. If you bought Mortal Kombat 1 on a cartridge, you are allowed to dump that cartridge to an XCI and convert it to an NSP for convenience to avoid carrying the cart. However, sharing that NSP file online is illegal distribution. mortal kombat 1 nsp
Remember to respect the game's terms of service and Nintendo's guidelines when playing and sharing your experience. In simple terms, an NSP is the exact