B-Daman Crossfire(2011)

B-Daman Crossfire is an anime series following Riki Ryugasaki, a curious schoolboy with dreams of adventure and an obsession with mysteries. When his friend Sumi takes him to his first B-Daman event, Riki becomes captivated by the competitive marble-shooting sport. His fascination deepens when he learns of an urban legend circulating among local children: a secret B-Daman tournament accessible only to an elite group of players. Determined to uncover the truth behind the mysterious competition, Riki embarks on a journey that blends action, discovery, and the thrill of high-stakes B-Daman battles. As he pursues answers, Riki discovers that the world of B-Daman holds far more secrets and excitement than he ever imagined.