100Floors level 42
Tap the switch on the bottom right corner to see the two shapes on the door. Memorize the two shapes and the position.
Slide the door left and right to see other two shapes on the door. Memorize the two shapes and the position.
Slide the door up and down to open the door. Tap on shapes on the door to change it. Rotate the order of the shapes so that they will match the four shapes you saw on the door.
100Floors level 43