Here is the full list of all 25 Anima Gate of Memories achievements.
Find all items, weapons and artifacts.
Finish the game in New Game+.
Obtain the Joke Ending.
Finish the game obtaining the Early Ending.
Finish the game obtaining the True Ending.
Reach Level 20.
Defeat the Secret Boss.
Finish the game obtaining the Bad Ending.
Obtain the Angelus.
Defeat Romeo Exxet.
Defeat for second time The Nameless Messenger.
Free all Prisoners.
Finish all possible conversations with Ergo.
Defeat Malekith, the Lord of Nightmares.
Obtain all Memories
Finish the game obtaining the Worst Ending.
Defeat Druaga.
Give the Blood Stone to its owner.
Defeat Jonathan Kappel.
Open the way to the upper floors.
Defeat The Nameless Messenger for first time.
Steal from the rich, give to myself!
Defeat Nascal the Puppetmaster.
Reach Arcane.
Defeat a Memory Knight.