Captain Blue Junior, alias Junior, hails from the Viewtiful Joe anime adaptation. This youthful hero admirer resides in Blue Town, named after the legendary superhero Captain Blue. Junior safeguards Blue Town while eagerly anticipating Captain Blue's return, hoping to inherit his legacy through a V-Watch signifying official succession. When Joe receives the V-Watch intended for him, Junior burns with jealousy. Nevertheless, he channels his resentment into becoming Joe's loyal sidekick, leveraging his extensive Movieland knowledge to aid Joe's missions. Captain Blue subsequently gifts Junior a case containing twin V-Yo-Yos instead of a V-Watch. These enable his transformation via the chant "Henshin a Yo-Yo Ball Baby!" or variations like "Henshin a Yo-Yo Baby!". Junior evolves from rival to steadfast ally, joining Joe and Silvia in battles against antagonists like Jadow and the Gedow organization. His commitment culminates in a Heroic Sacrifice to save Joe and Silvia from Charles III, Hulk Davidson, and Gran Bruce. This act provokes a visceral emotional response in Joe, triggering a decisive clash with the villains. Throughout the Gedow arc, Junior persists as Joe's sidekick, deploying his V-Yo-Yos in combat. He remains the franchise's youngest transformable hero. Beyond the anime, Junior features as a playable character in Viewtiful Joe: Red Hot Rumble, utilizing yo-yo-based attacks consistent with his animated portrayal.