
Smash Bros. Ultimate Switch 2 Bug Disrupts Mii Fighter Matches
Jun 05, 2025 4:14 PMNintendo has recently identified a critical compatibility issue affecting Super Smash Bros. Ultimate on the new Switch 2. Players using Mii Fighter characters while facing opponents on different console generations may find themselves abruptly booted from online matches. This glitch only occurs in cross-generational gameplay, leading to significant disruptions. Nintendo advises users to refrain from using Mii Fighters online until a fix is implemented, and while the company promises an upcoming update, no specific release date has been provided. Players have noted similar problems with Mii Fighter thumbnails not saving correctly on Switch 2, hinting at deeper compatibility issues.
What is the compatibility issue with Super Smash Bros. Ultimate on Switch 2?The compatibility issue affects matches between players on Switch 1 and Switch 2 when one is using a Mii Fighter character, resulting in both players being kicked from the game. Nintendo recommends avoiding Mii Fighters in online matches until a fix is available.
Released in December 2018, Super Smash Bros. Ultimate has sold over 36 million copies, making it one of Nintendo's most successful titles. The game features an extensive roster of characters and has become a staple within the competitive gaming community. Despite these current setbacks, fans eagerly await future developments from the Super Smash Bros. franchise, including upcoming titles from series creator Masahiro Sakurai.

Casey Loh
Casey Loh is a tech-savvy writer who specializes in the intersection of gaming and technology. With a background in computer science, Casey brings a technical lens to her reviews, breaking down the nuts and bolts of game engines, graphics, and AI innovation.
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