Here is the full list of all 40 ToriDori achievements.
Done!
You found all the differences.
Complete the game.
Pet the cat in the captain's cabin.
Take a walk around captain's cabin.
You found 300 differences.
Complete the first diorama of four pieces.
You found 200 differences.
You found 100 differences.
Complete the first diorama of two pieces.
You found 50 differences.
You have used 10 clue
Make more than 100 wrong clicks.
You have used 5 clue
You found 10 differences.
You have used 1 clue
Go through one location without hints.
Take the training.
Complete the first diorama of one piece.
Click past differences 10 times.
Find one difference.