Sting revealed that Yggdra Union’s smartphone port that released recently is getting some additional DLC that adds two different BGM sets that players can switch between if purchased. [Thanks, 4Gamer!]
The first set is a set of 57 songs from the original Game Boy Advance version of Yggdra Union in its original soundfont. The other BGM set is a set of 21 tracks based on character themes.
The BGM packs will cost 360 yen and 120 yen respectively, and is already available for purchase. Yggdra Union is currently available on iOS and Android, and was originally released for Game Boy Advance.