100Floors level 82
Tap on right bottom of the ground. You can find hidden hole & panel there. (See a following pic.)
Take the panel and put it on the left door.
The hidden hole indicates the direction of 2 panels on the door. Tap the left panel to point 9' clock. Also, tap the right panel to point 4' clock. Then you can find a lever at right.
Take the lever, then put it at right of the ground.
Hold the lever and use your other finger to open the door. Escaped.
100Floors level 83