Neuron Fly

Characteristics​
Neuron flies look like two thin lines connected to a ball with a white eye (or face) and come with red, white, blue or purple colors. They are fairly common in Five Pebbles​ and can be consumed as food.

Looks To The Moon
When Big sister Moon is found, the neurons are flying above her. Catching these neurons causes Moon to shake her head frantically. Eating it makes her throw herself to the ground and jerk around. Eat all of them to become Enlightened and kill Moon. This earns the achievement Stolen Enlightenment. If you don't eat them and hibernate, a cutscene plays, then the (guide or Watchers) will show places to get more neuron flies. If you bring more to her, she will get better.