An adult Gugugaga. Personality: Diverse. Gender: Random (Male or Female). Biology: A creature that lays unfertilized eggs. Occupation: Various, including some who are unemployed. Likes: Sweets. Dislikes: Vegetables. Overview: Wears a black penguin costume with the face of a girl around 4 years old. Wears a collar around the neck. Can only speak in sounds like "Gugugaga," "Guguyaya," "Gugaa," "Gugya," or "Gya."

A child Gugugaga penguin. Personality: Diverse, taking after the parents. Gender: Random (Male or Female). Status: Attends school. Likes/Dislikes: Similar to the parents. Growth: The form a Babugaga takes after growing for 3 years. Overview: Wears a gray penguin costume with the face of a girl around 4 years old. Wears a light blue bib with a cloud pattern. Can only speak in sounds like "Gugugaga," "Guguyaya," "Gugaa," "Gugya," or "Gya."

A baby Gugugaga. The form immediately after hatching from an egg. Personality: Diverse, taking after the parents. Gender: Random (Male or Female). Likes/Dislikes: Similar to the parents. Overview: Wears a light blue penguin costume with the face of a girl around 4 years old. Has a pacifier in its mouth. Can only speak in sounds like "Gugugaga," "Guguyaya," "Gugya," "Gya," or "Babugaga."

A subspecies of Gugugaga. Personality: Diverse. Gender: Random (Male or Female). Likes: Sweets. Dislikes: Vegetables. Occupation: Various. Overview: Wears a yellow chick costume with the face of a girl around 4 years old. Can only speak in sounds like "Piyogaga," "Piyoyaya," "Piyo~," "Pigya," or "Gya."