Despite being on aging hardware, the Wii version includes several core features found in modern editions:
The WBFS (Wii Backup File System) format was notorious for stripped audio and stuttering video. But NAND_Rebuilder had a secret: they'd reverse-engineered Ubisoft's proprietary compression algorithm from the Just Dance Wii 2 Japanese exclusive. With that, they could fit 52 full-length songs onto a single 4.7GB ISO—each in PCM-quality audio and 480p MPEG-2 video at 8 Mbps, a bitrate 40% higher than any prior entry. Just Dance Wii 2020 Wbfs High Quality
Even in the Wii version, you can unlock special variations of the main tracks: Just Dance 2020 Review for the Wii?! Despite being on aging hardware, the Wii version
In January 2021, a user named "CRT_Ritual" posted a deep analysis on Reddit. Using a hex editor, they found a hidden string in the main.dol executable: Even in the Wii version, you can unlock
Even with a high-quality WBFS, users report problems. Here is the fix for the top three:
And yes, if you listen during the calorie cheer after a Perfect on "Jerusalema"—in the right channel, mixed beneath the crowd sample—you can hear a very soft, very old woman's voice whispering in Portuguese: