The keyword specifies "NSP Exclusive." While the game is available on PS4, Xbox, and PC, the has unique characteristics that make it the definitive version for collectors:
Buy the game on the eShop (which downloads as an NSP to your SD card technically) or insert your cartridge, dump your copy, and install it via DBI or Goldleaf. This gives you the speed and portability without legal gray areas. The keyword specifies "NSP Exclusive
Whether you plan to play mostly or local/online multiplayer ? dump your copy