Here is the full list of all 23 The Legend of Dark Witch achievements.
Clear all stages using Riva as your player character and watch the Ending.
Defeat Verri without using Technical Skills and without receiving damage.
Defeat Riva without receiving damage.
Defeat Stoj without using Technical Skills and without receiving damage.
Defeat Blad without using Technical Skills and without receiving damage.
Maximize all parameters in the Growpart Menu.
Defeat Al without using Technical Skills and without receiving damage.
Defeat Papelne without using Technical Skills and without receiving damage.
Defeat Sola without using Technical Skills and without receiving damage.
Successfully use "Blocking" over 50 times.
Collect All Pura Syega.
Defeat Klinsy without using Technical Skills and without receiving damage.
Clear all stages and watch the Ending.
Clear all stages in LUNATIC difficulty level and watch the Ending.
Clear all stages using Riva as your player character in LUNATIC difficulty level and watch the Ending.
Watch the ending within 45 minutes of starting a New game.
Watch the ending without collecting any Pura Syega.
Watch the ending without leveling any parameters in the Growpart Menu.
Watch the ending without using any Enforcement Slots other than Speed.
Watch the ending without receiving damage more than 5 times.
Watch the ending without dying.
Defeat Zizou without receiving damage.
Unlock all Playing Levels.