100 Doors Runaway Level 39 Walkthrough:
1. Tap the recycling bin to get bottles.
Use the bottles on the water faucet to fill them.
Use the filled bottles on the white box to turn them hard.
Use the hard bottles on the rock.
Keep doing this until the key appears on the rock. (it takes 6 bottles)
Use the key on the door.
2. Proceed to the next 100 Doors Runaway level!
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