Floor 23:
-Tap the little night-light to turn the big light on.
-Tap the steel plate in your inventory, then tap the door to place the steel plate on it.
-Note the 4 flower symbols showing through the square holes. Tap them from right to left (or from the flower with the most petals to the one with the least petals).
Next Level: 100 Floors Floor 24 Walkthrough
See 100 Floor Walkthrough/Solutions to all floors