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