Here is the full list of all 23 Ghost Files 2: Memory of a Crime achievements.
Find all Collectibles.
Find all Morphing Objects.
Complete a Hidden Object Puzzle without a mistake.
Catch the killer.
Finish all the Minigames without skipping them.
Disable the bomb.
Operate a crane.
Recollect all the lost memory.
Escape the coffin.
Discover the identity of the “Executioner” killer.
Find 15 Collectibles.
Put out the flames.
Complete fingerprint forensic analysis.
Find 15 Morphing Objects.
Complete a Hidden Object Puzzle in less than a minute.
Find 3 Hidden Objects within 3 seconds.
Complete a Minigame in less than a minute.
Complete your first forensic analysis.
Finish 3 Hidden Object Puzzles without a Hint.
Recollect one lost memory.
Find one Collectible.
Find one Morphing Object.
Complete a Hidden Object Puzzle without a Hint.