100 Gates walkthrough and solution for levels 12, 13, 14 and 15:
Level 12: Pick up the hammer and use it to break all the bottles. pick up the knife and tap the spider web until it disappears.
Level 13: see the video for solution.
Level 14: move the medieval weapons away from the skeleton. Connect the pieces of bones to the head in this order: chest, hips, left leg, right leg, left hand, right hand. Tap the mirror until it breaks and finally open the door.
Level 15: Touch the sun located in the top left corner and put it on the door. Next, tap the zodiac numbers in correct order: 12, 3, 7, 9, 1.
100 Gates Walkthrough covering levels
12, 13, 14, 15: