Mogumogu takes the form of a mole creature serving as a co-navigator within the film’s segmented narrative structure, primarily facilitating story progression during the Antarctica-focused chapter titled *Pentabi (Penguin Journey)*. The character shares navigational responsibilities with Gurara, established as Mogumogu’s offspring, creating a collaborative partnership underscored by their familial bond.

While the film’s Australia-centric segment features additional characters like Leroy the koala and Tsukiko the Asian black bear, Mogumogu’s presence remains confined to Antarctic narrative duties. The character’s background, psychological attributes, and driving goals are not elaborated within existing documentation. Though direct interactions with non-Antarctic figures are not explicitly detailed, the film’s ensemble structure implies possible thematic or situational links between segments.

Expanded lore across alternate media—including television series, specials, or spin-off projects—remains unspecified. No prior appearances in preceding seasons, OVAs, or supplemental materials beyond the film adaptation have been documented.