"Yggdra Union" was a particularly difficult game to localize due to the stylistic presentation. Characters have effects, innate abilities attached to them. These effects are formatted in such a way that in the Japanese version of the game, there was only room for seven characters of a 10-pixel-tall font. Nich Maragos, lead editor in the localization effort, notes such difficulties as the extreme text constraints, as well as Atlus USA's busy release lineup leaving "Yggdra Union" short on staff. Atlus USA's localization of the PSP version was released on September 16, 2008.