Turn the phone upside down to 2 paintings shift and look at the left of the door. Then note the black dots on the side of the door as a hint to push the button.
Answer: Press the button 1 time pause, 2 times pause, one time pause, one time pause, 3 times.
100 Doors Parallel Worlds Level 21 22 23
100 Doors Parallel Worlds Walkthrough 22
Shifting the position of the 4 buttons on the side of the door, from left: slide into the middle, slide down, slide a bit down, stay on top of button fourth.
100 Doors Parallel Worlds Level 23Hitting four symbols on the walls and on the floor by the number of different presses.
Answer: Press 1 time circle, triangle 3 times, the line of arches 2 times, square + line 4 times.
Continue to Level 24 25 26 on 100 Doors Parallel Worlds Walkthrough