Here is the full list of all 22 Darkness and Flame: Missing Memories achievements.
Completed 3 mini-games in a row without using a Skip.
Drove through the desert without any collisions.
Unlocked 3 chests in the mini-game in the ship in less than 20 turns.
Completed a mini-game in less than a minute.
The main and bonus chapters completed without skipping any mini-games.
You have found all the morphing objects.
Completed the main and bonus chapters without using any Hints in the HO scenes.
Completed the Road Signs collection.
Completed the Scorpions collection.
Completed the Dog Statues collection.
Completed the Golden Pinecones collection.
Completed the Mushrooms collection.
Collected all the Story Capsules.
Completed the main chapter on Hard difficulty.
Completed the main and bonus chapters without skipping any dialogue or videos.
Completed the main and bonus chapters without using any Hints.
Completed an HO scene in under 2 minutes.
Completed the mini-game with pairs at the bar without any misses
Gathered all the items at Kiara's house in less than 45 seconds.
Completed all additional puzzles in the Extras Menu.
Complete all 20 levels in the Bonus Mini-game.
Went through the forest without losing the trail.