The latest patch, version 2.0.0 from Nintendo for its hit game Super Smash Brothers Ultimate takes two steps forward with increased detail in its patch notes, but several steps back thanks to a nasty bug introduced. Most notably in the patch, the game added the Piranha Plant to the game, a free DLC character for those who purchase the game through January 31st (physical copies need to register it online). You can read about the details over here as we covered it along with four player play on the spirit board and more.

However, the patch has a major hitch, unfortunately. At the time of writing, specific combinations of characters and particular modes are causing hard crashes of the game, which unfortunately corrupt save data. The most widespread corruption occurs when playing the new fighter, the Piranha Plant, in the All-Star mode, but it does not seem to occur 100% of the time. Other users reported it happening with the Piranha Plant in the Classic Mode, specifically getting error 2002-4153 after trying to restart the Switch. The only modes that seem to be hit are the single player modes, and is more frequent with the Piranha Plant then anything else.

Aditionally, there have been reports of Century Smash corrupting save data when using Duck Hunt or Mii Swordfighter, but like the Piranha Plant errors they aren't guaranteed and seem to have a secondary cause that is unknown at the time of writing. Until further notice, it would be wise for readers to avoid the games and more section until further notice.

It should be noted that if you do run into a corruption issue of save data, you can restore via a cloud backup if you are subscribed to Nintendo Switch Online, via the following procedure: