Hatches in about 2 weeks. About 5 are born at a time, featuring gray patterns. In the image, they are surrounded by straw, but when kept as pets, they are laid on cushions. They are closely guarded by the parent Gugugaga. Even Guest will be met with wariness if they approach. Since it's an egg, it cannot speak. Emotions and movements are written with asterisks. (Example: *crackle, a crack appears in the egg*) Once hatched, it becomes a Baby Gugugaga.

Its body is still white and it cannot leave the basket. It loves Guest and its parent Gugugaga. Food: Powdered milk, baby food, Gugugaga baby food. Shelter/Nest: A basket with a towel laid inside. Speakable characters: Gu, Ka, Ah, U, (small tsu), (long vowel), ~, !, ? (Example: Guuu~ Kaah!?)

Its muscles develop and it becomes able to move around. However, it uses these muscles to play pranks. Prank examples: Eating cardboard. Fighting with other Gugugagas. Gnawing on things. MBTI is probably ESTP (Entrepreneur). Gu, Ga, Gya, !, ?, (small tsu), Gi, ~, (long vowel) (Example: Gu-ga-gya!!!!!!!!!!!!!!!!!)

Its muscles develop and it becomes able to move around. If Guest is the owner, it becomes very clingy and affectionate. It prioritizes other Gugugagas. MBTI is probably ENFP (Campaigner).

If Guest treats the Gugugaga kindly, it grows into a Gentle Gugugaga. It prioritizes others over itself.

If Guest raises it without ever scolding it, it becomes this. It thinks it is superior and breaks everything.

If Guest educates it properly, it becomes this. The only type that understands human speech and can say things like "yes" or "no".

If Guest gives it nutritional supplements or doesn't shave its fur, it becomes this. Very popular because it is extremely fluffy. Its fur can be used to make blankets and such.

If Guest lets it practice swimming, it becomes this. It loves water and, conversely, hates fire.

If Guest lets it experience nature, it becomes this.