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The backward compatibility of original Nintendo Switch games on Nintendo Switch 2 isn’t perfect. While nearly every title works, some games have weird compatibility issues that need to be patched out. As it turns out, Super Smash Bros Ultimate is one such title.
Similar to the recently-patched Animal Crossing: New Horizons, the latest Smash Bros has a weird issue when playing multiplayer across both consoles, but a fix is in the works.
Super Smash Bros Ultimate Mii Fighter glitch
As explained by Nintendo of Japan, the Mii Fighter character in Super Smash Bros Ultimate can now crash everyone’s game when used in a match between an OG Switch player and a Switch 2 player.
Nintendo warns that using the character on either Switch console will cause an online match to end “immediately”. If you use the character, all players’ matches will end and the game may even crash.
Nintendo has confirmed that “an update will be released soon” to fix the issue across the Nintendo Switch generations. However, there’s no release date planned for the update at the time of writing.
Nintendo has not explained why the Super Smash Bros Ultimate Mii Fighter bug actually occurs between the two Switch consoles. However, it may be linked to the slightly different ways the two consoles handle their Mii customisation.
Thankfully, I’ve never met anyone who actually mains Mii Fighter in Smash Ultimate. In fact, in all of my time playing Ultimate online, I’ve never come up against a Mii Fighter player after the game’s launch period. So, hopefully, this shouldn’t be too much of an issue for players online.
With the console now out in the wild, we’re bound to uncover a number of minor issues with Nintendo Switch 2. After all, on the first day of release there are infinitely more testers on both hardware and software than has ever been possible.