Mario Kart World patch 1.2.1 released

Nintendo releases a small patch for Mario Kart World on Nintendo Switch 2 to address a ghost data issue in time trials.

Mario Kart World patch 1.2.1 fixes ghost data mismatch

Nintendo has released Version 1.2.1 for Mario Kart World on Nintendo Switch 2. The update fixes an issue where ghost data could download and display a different ghost, causing mismatches when racing against a downloaded ghost or viewing replays in the time trials rankings.

Players who regularly run time trials will notice the improvement, as ghost times and the displayed ghosts are now consistent with what was downloaded. The patch is small but targeted, focusing on a core quality of life problem for competitors.

The fix shows how data integrity matters in a popular arcade racer. Even small bugs can erode trust if they linger, so this patch is a sign of a maintenance mindset that players appreciate.

Going forward, Nintendo could add automated checks to keep ghost data aligned across modes and ensure replays reflect the true run. If more patches address quality issues with the same care, players may feel the game respects their time and skill.

Highlights

More patches may follow as players push the game to its limits