Luffys final battle against Doflamingo in Dressrosa started in episode 723 of the anime and in chapter 782 of the One Piece manga. Although Luffy punched Doflamingo and fought his string clone before this episode, the battle between Luffy and Doflamingo rages on in episode 733-734 of the anime and chapter 790 of the manga, where Luffy finally defeats Doflamingo. Therefore, Luffy beats Doflamingo in One Piece episode 733 titled Attack on a Celestial – Luffy’s King Kong Gun of Anger.