Here is the full list of all 39 Mysteria ~Occult Shadows~ achievements.
5 deaths experienced
First execution of enemies
Kill 100 enemies with executions
Unlock all enemies' skills
50 Combos reached
Welcome to Mysteria！
Investigation of the Foggy Canyon completed
Defeat Aya, Hedes and Black Shadow, on any difficulty
Escape from other prisons
Discover the Castle of Ellia
The "Shadowtail Chain Blades" obtained
Defeat the "Echo, Guardian of Light" and "Prenton, the Mizigami" on any difficulty
A small teddy bear obtained
All green crystals collected
Defeat "Michelle, Deity God of War" on any difficulty
Kill "Sacred League Commander, Shayna" on any difficulty
Pass game on any difficulty
Pass game on the "God Of Death In Purgatory" difficulty
Use self-exposing skills 10 times
Kill 500 enemies
Kill 1000 enemies
No injury in a map
No injury in a BOSS battle on any difficulty
100 Combos reached
500 Combos reached
All 5 different fruits collected in the map of the "Ruri Forest".
Completely strengthen the Scythe of Death
Completely strengthen the Demon Sword
Fully enhance the Shadowtail Double Blade
Fully strengthen physical strength with natural essence
Fully strengthen magic power with Psychic Fire
All treasures collected
Read all notes
Eat 20 swans
Drink 20 Fantasy Cocktails
Pass game on the "Underworld Legend" difficulty
Kown Blue
接受守护团特派任务
完整观看谢幕名单