Here is the full list of all 22 Iris.Fall achievements.
Observe the girl's front projection at the wheel.
Place the music note more than once in the Book World.
Solve the huge book projection puzzle in the Library without removing any items from the wheel.
Solve the typewriter puzzle in the Library on the first try.
Rotate the cube just 3 times to complete the cube puzzle on the first floor.
Complete the puzzle without making any circuit mistakes.
Cover the eyes in the right order without making any mistakes.
Clear the game
Be blocked by different puppets in the shadow world.
Find the hidden drawings behind the screen.
Complete Chapter 7
Flip the pages more than 10 times in the Book World.
Complete Chapter 6
Complete Chapter 5
Chase after the resting cat 3 times in the Hall of Many-Doors.
Complete Chapter 4
Complete Chapter 3
Knock over the bucket by the fireplace.
Did not reset the clock hands.
Complete Chapter 2
Complete Chapter 1
Pick up an item in the shadow world.