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This article contains plot details about the story of a game.
An asterisk (*) indicates a Vivosaur that is rare.
At the beginning of Chapter 5, the Hero hears from Captain Bullwort that Rosie has been kidnapped, with the tacky idols demanded as ransom. Bring the idols to the Park Area , where a BB submarine appears. Defeating the BB Soldier will make him run off, leaving the submarine unguarded. Pressing the autopilot button sends the ship to the BB Base. The Hero proceeds to climb a series of staircases (five in all), fighting numerous BBs and B.B. Bandit Trio along the way. Upon reaching the top floor, Bullwort stands waiting next to a gagged Rosie and a glass of sweet, artificial grape juice. This is when he spills his secret: he is the criminal mastermind behind the BB Bandits, BB Boss Bartholomew Bullwort. After beating his three Sauropods (Salto, Shuno, and Amargo) some officers arrive, and haul him off to the jail. After defeating the final boss, you can battle the BB Trio again in Bullwort's chamber to get the Legendary Vivosaur, Frigi.