Booby, designated Perman No. 2, is a chimpanzee superhero enlisted by Birdman—a galactic guardian overseeing interstellar harmony—to join the Permans. Initially portrayed as a zoo resident covertly operating at night, his origin was revised to depict him as a cherished pet residing with an elderly couple, granting him autonomy to pursue heroics. This retcon reinforced Birdman’s ethos of human-animal equality, subtly confronting species-based prejudices through Booby’s narrative.

Unable to vocalize human speech, he communicates via expressive gestures and inventive tool use, seamlessly collaborating with teammates who interpret his actions. His sharp intellect and adaptability shine in missions spanning human crises and interspecies disputes, often bridging gaps through pragmatic solutions. While embracing human mannerisms, he retains a distinct animal perspective, offering unconventional strategies critical to the team’s success.

A robotic duplicate safeguards his civilian identity, deployed by Birdman to maintain secrecy during missions. Though generally reliable, the proxy occasionally triggers comedic mishaps or near-exposure. Booby’s evolution from a zoo-bound primate to a socially integrated hero mirrors the series’ growing emphasis on unity and cooperative resilience.

Across adaptations, he remains a steadfast mediator between humans and animals, embodying impartial heroism through loyalty, ingenuity, and an unwavering commitment to justice. Even in crossover narratives like *Ninja Hattori-kun + Perman Ninja Kaijū Jippō VS Miracle Tamago*, his core identity as a compassionate problem-solver and bridge-builder endures unchanged.