
Titled "Gear 4," this chapter unveils Luffy's Boundman transformation in full. After inflating his body with Haki, the bouncing fighter smashes Doflamingo off the palace and into the city below, while Zoro reveals his intent to halt the deadly Birdcage.
Dressrosa's people flee the Torikago, which shoves the wreckage of the town inward rather than slicing through it. Sai rallies the fallen Colosseum gladiators back to their feet. Climbing down from the King's Plateau, Viola realizes the cage's center is drifting toward Doflamingo, meaning even the island's heart will be shredded, and a frightened Usopp urges everyone onward. Kin'emon and Kanjuro chase Zoro for answers, and he stuns them by announcing his plan to stop the cage itself.
On the Flower Field, Cavendish admires the reattachment of Law's arm and recounts how he foresaw that a victory over Doflamingo would make Luffy and Law the eye of a worldwide storm, which Law confirms is the goal. Atop the roof, Luffy kicks off his sandals, coats an arm in Armament Haki, and blows air into his muscles until his whole torso swells. Boundman is born, leaving him constantly rebounding. Doflamingo scoffs that the supposed trump card is merely bouncing, until Luffy sinks a fist into his body and unleashes a blow that hurls the Warlord into the Dressrosa streets.

Naruto vs Luffy with the twist nobody asked for: Luffy tickled Hinata on date night, and she kind of liked it. We break down the whole fight and commit to a winner....

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Doflamingo's crash levels several buildings, and a Marine asks how he arrived there. The enraged Warlord finds himself pinned between his own cage and Luffy, who flies down, vanishes, and dropkicks him from behind. Luffy presses with Culverin, then lands a redirected punch to Doflamingo's face despite an evasion, while the Athlete kick fails to pierce his rubber body. Luffy explains the form was honed on Rusukaina to subdue the island's beasts. The color spread shows the Straw Hats picnicking with zombies, Franky's dance echoing Michael Jackson's "Thriller."
In Chapter 784, Gear 4, Luffy fully unveils his Boundman transformation, inflating his body with Armament Haki to smash Doflamingo off the palace roof and into the city below, while Zoro reveals he intends to stop the deadly Birdcage.
Luffy kicks off his sandals, coats an arm in Armament Haki, and blows air into his own muscles until his torso swells, transforming into the constantly rebounding Boundman form.
Luffy explains that he honed his Boundman form on the island Rusukaina while training to subdue its dangerous beasts.
Luffy sinks a fist into Doflamingo's body and unleashes a blow that hurls the Warlord off the palace roof and into the streets of Dressrosa below.
Viola realizes the shrinking Torikago's center is drifting toward Doflamingo, meaning it will eventually shred even the island's heart, pushing everyone including a frightened Usopp to keep moving.
Looking for more on Chapter 784? The One Piece Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the One Piece anime series, manga, and official materials. Episode and chapter references are cited where applicable.
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