Gost

Gosts are a species from the Realm of Collection featured in Collision Course.

Species Biography
Within the Freaky Forest, one can hardly walk three steps without running into a Gost. These ghost-like beings love nothing more than a good scream. Most assume this screaming is supposed to spook folks who cross their path, but in reality, they simply like screaming. In fact, it is rare to see a Gost with its mouth close, even if it has stopped screaming momentarily. Their actual strategy for scaring is to ram into people with the rounded heads, though they often don't watch where they're flying and go sailing right past their target.