Spinners are creatures in Pest Control that appear as spinning tops or jellyfish, and float above the ground. They repair the portals on the island and must be defeated if the portals are to be destroyed. It is therefore recommended that players kill the spinners first before attacking the portal, especially if more than one spinner is present. If the humans over power the portal and destroy it before the spinner can finish healing, it will begin to spin around and then explode hitting all players within a few squares with poison that does damage instantly as it explodes and then continues through standard poison thereafter. If they were lured far enough away from a portal however, they won't explode once the portal dies.