Downloading and distributing copyrighted game files (ROMs) is generally considered software piracy and may violate Nintendo's Terms of Service as well as intellectual property laws in many regions.
Files like this are typically found on third-party websites and are used for playing games on Nintendo Switch hardware via custom firmware (CFW) or on PC emulators like or Ryujinx . Super-Mario-Odyssey-NSP-ROMSLAB.rar
: A common compression format used to reduce file size and bundle multiple files into one. Important Context: Super-Mario-Odyssey-NSP-ROMSLAB.rar