Trick or Treat!

Set this trio of monsters in a darkened room and wait for someone to enter and turn on the lights. Suddenly they all spring to life!

These monsters are fun to leave somewhere like on a porch with an automatic light, so they'll start dancing whenever a guest approaches in response to the change in brightness or the sound of their approaching footsteps, depending on which trigger mechanism you prefer.

This guide was first published on Oct 11, 2018. It was last updated on Oct 11, 2018. This page (Trick or Treat!) was last updated on Oct 23, 2019.