Maa-kun appears exclusively in the "Super Kuma-san" OVA as a child residing in the story's town. He forms an early connection with the protagonist after being rescued by Super Kuma-san during a bank robbery. Later, Maa-kun discovers Super Kuma-san alongside a clown character, both performing for children in a recurring public plaza setting used for entertainment. Within the OVA's narrative structure, he is categorized as a secondary character.