Minor "under-the-hood" tweaks to keep the racing fast and fluid. How to Update: Connect your Nintendo Switch to the internet. Highlight the Mario Kart 8 Deluxe icon on your Home Menu.

The mention of "NSP" and "UPD" suggests an interest in or a discussion about game updates and distribution methods. For many gamers, accessing their favorite games and keeping them up-to-date is crucial for an optimal gaming experience. Officially, Nintendo provides updates through its eShop, ensuring that users have access to the latest versions of their games, complete with patches for bugs and enhancements for performance and gameplay.

For the best experience, keep your game updated through the official system menu and enjoy the full 96 tracks now available in the Booster Course Pass!

: Always ensure that the sources of NSP and RAR files are trusted to avoid downloading and installing malicious software.

For users managing updates manually through archived files (like .rar or .nsp bundles):