Found a hidden item on a battlefield.
Executed a Team Attack.
Won a battle with 6 surviving party members.
Discovered an optional battle map.
Finished Act I.
Finished Act II.
Finished Act III.
Finished Act IV with the Altyria ending.
Finished Act IV with the Luce ending.
Raised a weapon skill to rank 25.
Earned both endings to the game.
Discovered every battle map.