Update Mario Kart 8 Deluxe 303 Extra Quality [exclusive] Instant

However, as of my current knowledge (and latest game updates), there is no official Nintendo release or patch called “303 extra quality” for Mario Kart 8 Deluxe .

As this update arrived after the conclusion of the Booster Course Pass DLC, it represents Nintendo's commitment to "polishing" the game for long-term playability rather than expanding it further. Context: Previous vs. Future Updates Version Major Additions 3.0.0 Final DLC Content update mario kart 8 deluxe 303 extra quality