: You do not need to purchase the software separately; it is a free download intended for use with the physical Mario or Luigi kart sets.
: Version 10.1.0 or higher is generally required for the base game. Mario-Kart-Live-Home-Circuit-NSP-Update-NSP-ROM...
: A physical RC kart (Mario or Luigi) is required to actually play the game, as the software uses the kart's built-in camera to create the augmented reality track in your home. Mario Kart Live: Home Circuit NSP/ XCI ROM v2.0.0 Download : You do not need to purchase the
If you are looking at this for technical or homebrew reasons, common requirements for running these files include: Mario-Kart-Live-Home-Circuit-NSP-Update-NSP-ROM...
: Users typically install such NSP files using tools like Tinfoil or DBI.