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