Arcana Heart was released on December 22, 2006.
'Yuki Enterprise' was the previous name of 'EXAMU'.
Sony Music Entertainment / Team Entertainment released a soundtrack album for this game (Arcana Heart Heartful Sound Collection - KDSD-127) on March 21, 2007.
Fiona and Orekarukosu Unlock Code : Without any credits inserted at the title screen, enter : 1P side [A], 2P side [Up], 1P side [B], 2P side [Right], 1P side [C], 2P side [Down], 1P side [D], 2P side [Left], 1P side and 2P side [START] at the same time.
If the code was successful, you'll hear the same sound effect as when you select your character and arcana.