Full list of all 50 Final Fantasy IV: The After Years achievements. It takes around 120-150 hours to unlock all of the achievements on Windows.
Reach level 50 with all characters.
Completed the Crystals.
Reach level 30 with all characters.
Learn 40 different band abilities.
Obtained Ultima Weapon.
Obtained Hero's Shield.
Obtained Ragnarok.
Obtain all non-hidden Eidolons.
Trade an ebony tail for a Provoke Ring.
Trade a gray tail for a Reach Ring.
Trade a gold tail for a Gil Band V2.
Trade a white tail for a Rapid Ring V2.
Trade a purple tail for Treasure Hunter V2.
Trade a red tail for a Level Band.
Trade a green tail for a Rare Band.
Trade a blue tail for Blue Armor.
Trade a rainbow tail for a Limit Ring.
Learn Dualcast.
Trade a black tail for Twin Stars.
Obtained a piece of adamant armor.
Collected every Lustful Lali-Ho.
Save up 500,000 gil.
Save up 200,000 gil.
Completed the Lunarians' Tale.
Completed Kain's Tale.
Save up 50,000 gil.
Completed Porom's Tale
Completed Edward's Tale.
Complete 60% of the Bestiary.
Completed Edge's Tale.
Completed Palom's Tale.
Defeat 2,000 enemies.
Complete 30% of the Bestiary.
Completed Yang's Tale.
Complete 100% of a Tale's Bestiary.
Defeat 1,000 enemies.
Completed Rydia's Tale.
Raise a band ability to the maximum level.
Defeat 500 enemies.
Completed Ceodore's Tale.
Save up 10,000 gil.
Defeat 100 enemies.
Began Ceodore's Tale.
Trade a pink tail for Pink Armor.
Obtain all Eidolons.
Learn all band abilities.
Raise all band abilities to the maximum level.
Reach level 70 with all characters.
Complete 100% of the Bestiary.
Complete every achievement.