Mario Kart 8 Deluxe Update 3.0.3 May 2026

The 3.0.3 Glitch

. While the official notes are typically brief, community sleuthing suggests this patch is more critical than it looks on the surface. Official Patch Notes: The "General" Fixes According to Nintendo Support , the changelog for version 3.0.3 contains just one line: mario kart 8 deluxe update 3.0.3

1. Update now

   It was beautiful carnage. Wario used a Golden Mushroom to phase through a wall and re-emerge as a 16-bit sprite. Yoshi ate a Super Horn and began hiccupping lightning. And Toadette, bless her, discovered that the glitch allowed her to throw herself as an item, sending a second Toadette rocketing ahead like a human Bullet Bill. Update now It was beautiful carnage

   Whether you are a casual racer or a 20,000 VR veteran, this update ensures your next trip to Rainbow Road is as smooth as possible. Keep system firmware current

2. Keep system firmware current