If you are using a modded Switch, using tools like NXDumpTool or Goldleaf to create a legitimate backup NSP.
Samurai Shodown happens to be a perfect candidate for NSP preservation because the physical cartridge contains the v1.0 version, while the eShop NSP includes the latest updates pre-packaged. samurai shodown switch nsp update dlc link
To get the most out of the game, you should always use official channels: Nintendo eShop: This is the only legitimate source for NSP updates If you are using a modded Switch, using