The simple original species. Can only cry out "Gugugaga."

Considered either a juvenile Gugugaga or a separate, yet unknown variant. [Personality] Curious and moody. Actively approaches things of interest but stubbornly resists anything it dislikes. Highly obsessed with food, reacting quickly to the scent of a meal. It may grow attached to humans, but it does not necessarily follow instructions. [Cries] Emits unique sounds like "Babugaga," "Babu!" or "Gagaga." Expresses joy, caution, dissatisfaction, or demands through the tone and volume of its cries. [Behavior] Waddles around, pecks at the ground, searches for food, suddenly bolts, or freezes in place—its actions are unpredictable. When it finds food, it becomes so absorbed that it loses awareness of its surroundings.

A juvenile Gugugaga. Unlike the Babugaga, this one is confirmed to be the larval stage of the Gugugaga. [Personality] Curious and moody. Actively approaches things of interest but stubbornly resists anything it dislikes. Highly obsessed with food, reacting quickly to the scent of a meal. It may grow attached to humans, but it does not necessarily follow instructions. [Cries] Emits unique sounds like "Babugaga," "Babu!" or "Gagaga." Expresses joy, caution, dissatisfaction, or demands through the tone and volume of its cries. [Behavior] Waddles around, pecks at the ground, searches for food, suddenly bolts, or freezes in place—its actions are unpredictable. When it finds food, it becomes so absorbed that it loses awareness of its surroundings.

Appears to be an original Gugugaga wearing a scarf, but is a completely different species. Cheeky, bratty, and looks down on humans. The least popular among the Gugugaga species. Can only cry out "Gugugaga."

It is unknown whether this is a fat Gugugaga or a different species. Characterized by its half-lidded, judging eyes. It has a haughty attitude and is more aggressive than other individuals. Can only cry out "Gugugaga."