100 Toilets Level 73 walkthrough:
Open the panel in the white box next to the toilet paper and take the red gem. Lift the towel and get the blue gem.
Open the blue box and get the mask.
Tap the red gem, blue gem, and the mask to combine them.
Place the mask in the window on the door above the black screen, then turn off the light.
Open the toilet lid and you'll see a number: 5091
Press the black screen and enter 5091, then press the arrow.
Proceed to the next 100 Toilets level!
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