If you install an NSP of the base game without the matching update (UPD), you cannot play online via custom servers (like Lan-Play or Pretendo) and you will miss 48 tracks.
As of early 2026, has received numerous updates that significantly expand its content, particularly through the Booster Course Pass . switch nsp mario kart 8 deluxe upd
, released on May 21, 2025. This update is primarily a technical fix to improve the gameplay experience and resolve specific data upload issues. Latest Update Overview: Version 3.0.5 Release Date: May 21, 2025. If you install an NSP of the base
Right-click the game, select "Manage Title Updates," and add the update NSP file. released on May 21