Pikkoro is a three-and-a-half-year-old Humboldt penguin girl residing on an island in a distant part of the universe. She shares her home with her two friends, Jajamaru and Porori. Her cheerful personality often sparks playful quarrels, reflecting the trio's dynamic interactions.

Pikkoro dreams of flying, an aspiration unexpectedly fulfilled during the group's sea adventure under unusual circumstances, leading to a comical flying sequence that aligns with her adventurous spirit.

When Porori learns of his younger brother's birth, Pikkoro dives into helping him build a boat for the journey to Poroporo Island. She remains actively involved throughout the ensuing voyage, facing pirates, enduring a storm, and encountering a whale. Her actions consistently demonstrate loyalty and steadfast support for her friends during these trials.

Her animated design retains visual elements from the original puppet version. Traits like her craving for bananas carry over from broader character lore into this narrative context.

Within the group, Pikkoro contributes to both cooperative activities and minor conflicts, serving as one of the three central figures whose interactions propel the story forward during their shared adventure.