The keyword refers to a specific, region-locked version of the 2012 rhythm game Just Dance 4 , often sought in a WBFS (Wii Backup File System) format for use on homebrewed Wii consoles.
Users often look for these in to play them via USB loaders on original Wii hardware. Reddit·r/WiiHacks just dance 4 special edition paldwiiwbfs 2021
The mention of in your search likely refers to the Just Dance 2021 Wii Mod . Because Just Dance 2020 was the final official entry for the Wii, dedicated fans created a 2021 version by modding the Just Dance 4 or Just Dance 2020 engines to include modern tracks like "Blinding Lights" by The Weeknd. The keyword refers to a specific, region-locked version