Here is the full list of all 30 Ghost Trick: Phantom Detective achievements.
Final Chapter: Fail by Removing a Large Symbol
Clear all Challenges
Chapter 15: Avert fate without any deaths after the final Fate Change
Complete all 5x5 Ghost Puzzles
Chapter 14: Fail by Keeping the Ball Away from Mino
Chapter 13: Take Aim and Nail It on the Second Try
Cleared "Ghost Trick"
Cleared Chapter 17
Cleared Chapter 16
Cleared Chapter 15
Swapped 44 things
Cleared Chapter 14
Cleared Chapter 13
Cleared Chapter 12
444 Tricks
Cleared Chapter 11
Cleared Chapter 10
Chapter 10: Avert fate without any deaths after the final Fate Change
Chapter 9: Lead The Way Outside Without Failing
Cleared Chapter 9
Cleared Chapter 8
Cleared Chapter 7
Cleared Chapter 6
Cleared Chapter 5
Chapter 5: Avert fate without any deaths after the final Fate Change
444 Ghosts
Cleared Chapter 4
Cleared Chapter 3
Cleared Chapter 2
Cleared Chapter 1