7x14 - Beyblade

Zero and Co. have just met the true identity of the "sea monster," Gen Kinokura. Upon their unusual encounter, the gang discuss what they should do, now that they've met him. Gen stops them there and tells them his back story. The reason why Gen poses as a sea monster, is because he cares deeply for beaches. However, beaches have become infested and inhabitable because of the trash and litter the people recklessly put everyday. Gen only cares for the beach, and he'll never stop as the monster unless people care for their beach. Zero thinks he should Beybattle Gen to stop his terrible goals, yet Kite believes he himself should challenge Gen. Gen agrees to the challenge and the gang move to a water-esque BeyStadium to do battle. The competitors "Go Shoot!" and the battle begins. Mal studies Gen's Beyblade, known as Pirates Killerken and discovers something that will make the battle hard for Kite.