Complete the following levels to get the reward:
Unlockable How to Unlock
Lightning Obtain the Superstar Achievement.
Snow Obtain the L’Cie paragon Achievement.
Sazh Obtain the Loremaster Achievement.
Vanille Obtain the Instrument of Faith Achievement.
Hope Obtain the Instrument of Change Achievement.
Fang Obtain the Treasure Hunter Achievement.
Serah Obtain all Achievements.