Overseer

Yellow Watchers are strange creatures that we don't know much about. The yellow watcher is named Paperclip (someone found this in the game's files) The other ones do not have names. Paperclip acts as a guide throughout the Moon quest line, leading you to Moon, Five Pebbles, and the neurons.

 WARNING: If you kill BSM Paperclip will leave you.

Blue watchers Blue watchers appear at certain moments. (please put research into this I'll thank you gratefully.) Blue watchers can be seen interacting with each other but connecting their arms/tendrils with each other which will cause little sparks. But beware that a clumsy watcher (besides the guide) can be killed by a curious scavenger that throws a spear at it.