Yamato, Terry, and Armada went to the B-Daman tournament and find Yamato's mom there, and Mie makes them sell lunch boxes. Then, this big weirdo bumps into Yamato (they dropped the lunch boxes, but they caught it), and leaves a few moments later. Only the best 16 players can go to the semi-finals, the first challenge was ""Shoot the Gap,"" Li, Wen, Gray, Terry, and an unknown player named X received a perfect 100 score. However, Yamato, before shooting a B-DaBall, bumped the table and accidentally knocked down 90 pins (there were 100 in total and 10 managed to stand). The results were in and Yamato had a tie with the same weirdo who bumped into him a while ago named Castio. With his B-Daman, Iron Meter, they were having a battle named ""Ultimate Strike"" with heavy pins. Castio scored 99 points(he knocked down 99 pins, one was standing), Yamato, however, went on fire and his B-DaFire knocked all the pins down (as well as burning a line on the table), and Yamato gets to go to the semi-final