 The official soundtrack to "Opoona" was announced via Basiscape's Twitter account and was published over three years after the game's original Japanese launch.ArtePiazza began working on "Opoona" in the spring and summer of 2005.The project had no publisher until "Dragon Quest" designer Yuji Horii sparked talks between ArtePiazza and Koei following the Electronic Entertainment Expo (E3) in 2006.