It was released for the Wii system on 13 October 2011 in Japan as the first Japanese installment in the Just Dance series published by Ubisoft.
Karaoke-styled lyrics is a brand new mechanic to the Just Dance series, which would later carryover to the main series, starting with the PS3 version of Just Dance 3.
Lyrics are highlighted with an icon shown next to the line with a color, based on its icon (light blue for male vocals and pink for female vocals).
A Tutorial mode is also available, showing how each mechanic in the game works.
[1][2] According to Media Create, as of 11 March 2012, the game sold 560,301 copies in Japan.