- sub characters to be included in the game

Final Fantasy XIII: Snow
Final Fantasy XI: Prishe
Final Fantasy IX: Vivi
Final Fantasy VII: Aerith
Final Fantasy V: Faris
Final Fantasy XIII: Cid
Final Fantasy I: Princess Sara

- unlock these characters by collecting Crystal Fragments
- add them to your party when unlocked
- call out summons like Odin and Bahamut to aid in your rhythm battles