Ep. 2: Yamato and Grey face Bull's dark side during a rematch involving Cobalt Blade and Chrome Zephyr

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Yamato engages in a rematch against Grey to improve his control over the B-Daman Cobalt Blade. During the battle, Bull unleashes his dark side for the first time, attempting to steal both Cobalt Blade and Chrome Zephyr. To prevent this theft, Grey and Yamato must overcome their personal differences and work together. The episode focuses on their struggle to unite against the common threat posed by Bull's sudden emergence of his dark side.