: The DLC can be purchased standalone for $24.99, which grants permanent access to all six waves. It's also included at no extra cost for Nintendo Switch Online + Expansion Pack members, though you'll still need to download it from the eShop.
To ensure all 6 waves of the Booster Course Pass function correctly, you must install the latest cumulative update NSP (Version 3.0.1 or higher) alongside the DLC activation NSP. How to Install Mario Kart 8 Deluxe Updates and DLC mario kart 8 deluxe switch nsp update dlc
Mario Kart 8 Deluxe on the Nintendo Switch is an exceptional racing game that offers an unparalleled gaming experience. Here are some reasons why it's a must-have: : The DLC can be purchased standalone for $24