The one-on-one showdown. Luffy and Doflamingo engage in a brutal, sky-splitting battle. Doflamingo’s Awakened Devil Fruit power (turning buildings into strings) gives Luffy the hardest fight of his life up to this point. The battle reaches its peak in Episode 733 , where Luffy debuts Gear Fourth: Boundman . The sheer animation quality and raw power of this transformation make it one of the top 5 moments in One Piece . Part 4: The Fall of Doflamingo & The Aftermath (Episodes 734-746) Episodes 734-737: The final blow. Luffy uses "King Kong Gun" to shatter Doflamingo’s ultimate attack, "Sixteen Holy Bullets," and sends the Warlord crashing into the center of Dressrosa. The Birdcage dissolves. Doflamingo is finally defeated—a tyrant undone.

As the colosseum battles end, Doflamingo reveals his true nature. He forces King Riku to fight his own citizens via the "Parasite" ability. The arc’s central tragedy—the "Riku Massacre" of 10 years ago—is fully explained. Part 2: The Uprising & The Birdcage (Episodes 662-709) Episodes 662-680: The "Sabo reveals himself" moment (Ep. 663) is a tear-jerker. Sabo eats the Mera Mera no Mi and becomes the new Flame Emperor. Meanwhile, Doflamingo corners Law and shoots him (Corazon’s flashback—episodes 681-690—is one of the saddest in the series). The Straw Hats, the Colosseum fighters (now branded the "Straw Hat Grand Fleet"), and the Riku army unite to take down Doflamingo’s top executives.

The Block C battle dominates these episodes. We are introduced to a rogue's gallery of powerful gladiators, including the legendary Cavendish , the eccentric Bartolomeo (a Straw Hat superfan), and the mysterious Sabo . Yes, Sabo—Luffy’s other sworn brother, long thought dead—returns in a heart-wrenching flashback. These episodes also heavily feature Zoro’s fight against the Pica statue and Franky’s showdown with the Senor Pink.

The pace shifts into a survival thriller. Doflamingo uses the Birdcage —an unbreakable cage of strings that shrinks inward, slicing everything in its path. Everyone in Dressrosa becomes a target. These episodes are tense, with Luffy chasing Doflamingo across the plateau while Zoro fights the mountain-sized Pica (Ep. 709 is a standout for Zoro fans). Part 3: The Climax – Luffy vs. Doflamingo (Episodes 710-733) This is the heart of the arc. Episodes 710-719 feature the last stand of the Tontatta dwarves and the final defeat of Doflamingo’s elite officers.