S1·E21 Good-bye, Bo-Bobo! The Final Showdown?

Back from his training trip (and after helping out in a carpentry lesson), Bo-bobo finally has his ultimate showdown with Captain Battleship, upon which the ducktailed warrior's sordid past and the truth of his hatred towards Bo-bobo is finally revealed! With bones flying, robots destroying and ultimate attacks from nosehairs to armadas to orange boxes showing up left and right, the two Fist of the Nosehair masters fight until one is finally standing at the end. But just when you think it's over...a new character appears at the end.!