Housekeeper Egg is a unique Eggy found in Eggman Origin.
Housekeeper Egg is located near the Fountain.
Robust worms. Where did they come from?
A theory is that Housekeeper Egg represents actual housekeepers and keeping pests out, which is a task one could expect from that occupation. The Eggy's dialog can be interpreted as coming from someone trying to get rid of resilient worm invaders.