Level 56 Make all the fans turn at the same time. Tap the top two fans with two fingers until they are spinning very fast, then do the bottom two fans.
100 Doors 2 Level 57 Walkthrough:
Level 57 Pick up the ice pick and use it on the block of ice. Pick up the ice and put it into the bucket. Tap the thing blocking the fireplace to move it, then use the bucket of water on the fire. Santa Clause will drop off a present. Open it to find the key.
100 Doors 2 Level 58 Walkthrough:
Level 58 Pick up the two bricks. Use one brick on the soldier. Open the locker and take the key. Use the other brick on the soldier. Use the key on the door. You have to do this level in this order or else you have to restart if you gave both bricks at the start.
100 Doors 2 Level 59 Walkthrough:
Level 59 Tap the lever, then tap it again. Pick up the pickaxe and use it repeatedly on the three sets of blue crystals until they're all in the cart. Tap the lever twice again and you'll get the key. Tap the lever to move the cart, then use the key on the lock.
100 Doors 2 Level 60 Walkthrough:
Level 60 Repeatedly tap the right gravestone until you see the crack. Repeatedly tap the left gravestone until you see the zombie arm with the keypad. Do the math: 1947-1914 = 33, 1885-1804 = 81. Tap the keypad and enter the code 3381.