Cool game. You might already know this, but if you press Space to guide a ghost and accidently go through another any other ghosts, it takes them too. Also, there were a couple times the number of spiders in the road increased so much it was impossible to cross. Maybe they are supposed to go back to one or two spiders if you wait long enough?

The concept is pretty original. Also was this made in scratch ? If so then that's impressive!