Here is the full list of all 12 Vandal Hearts: Flames of Judgment (JP) trophies - there are 7 bronze, 4 silver and 1 gold.
Find a hidden item on any battlefield.
Raise a single skill two ranks during 1 battle.
Win a battle with 6 surviving party members.
Discover an optional battle map.
Finish Act I.
Finish Act II.
Finish Act III.
Finish Act IV with the Altyria ending.
Finish Act IV with the Luce ending.
Raise a combat skill to rank 40.
Earn both endings to the game.
Discover every battle map.