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Defeat Him! The Pirate Ganzack (also known as Defeat the Pirate Ganzack!) was the first animated adaptation of One Piece, an original video animation (OVA) produced for the 1998 Jump Super Anime Tour. It was given a limited screening across Japanese theaters, and released on home video the following year, with copies bundled into select issues of Shonen Jump.

As it predates the "official" Toei anime, this OVA features markedly different animation (supplied by Production I.G.) and voice actors. It also does not adapt or reference any specific story from the manga, though its status quo vaguely fits the period between the Orange Town Arc and the Syrup Village Arc.


Adrift in a small dinghy on a sunny, windless day, Luffy, Nami, and Zoro sit paralyzed with hunger. As Nami berates the two men for squandering the month's provisions, a Plesiosaur suddenly attacks, snapping their dinghy in half. Overjoyed at this new source of meat, Luffy and Zoro prepare to counterattack, but are quickly overpowered and swept away in the tide; while a panicking Luffy drags Zoro deeper and deeper down, the monster carries Nami off.

Some time later, a half-drowned Luffy washes up on an island. Here, two pirates prepare to loot his body, only to be challenged by Medaka, a small, heavily armored girl who demands they return her father. Though Medaka proves little match for the pirates, she annoys them enough to give chase, and inadvertently trample Luffy enough times to force all the water from his lungs. Awakening in a rage, Luffy crushes the two pirates with a single punch, and promptly collapses from hunger.

Awed, Medaka brings Luffy - and a hastily found Zoro - into the local village, where an elder named Skid offers them food. While Luffy and Zoro eat (and speculate on Nami's fate), Skid warns them of Ganzack, a vicious pirate whose crew has enslaved the whole island. While the women, children, and elders have been left in the village as hostages, all the able-bodied men - including Medaka's father Herring - have been put to work in the Devil's Tower, a massive structure on the far side of the island.

Devil's Tower Infobox

Devil's Tower.

These accounts are interrupted by a tremor from the Devil's Tower, which spills Luffy's meal. Grimly, Medaka explains that the village has given the last of its food to Luffy and Zoro; only the tower, she adds, might contain more. On hearing this, Luffy immediately rushes off to the tower with Medaka, an exasperated Zoro following in their wake.

Infiltrating the tower, the trio find it contains an armory, with Ganzack's men forcing the villagers to build guns and cannons; the tremors had come from artillery tests, fired from the tower's mouth. Heedless of the dangers, Medaka cries out to her father as soon as she finds him, alerting dozens of hostile pirates. Unfazed, Luffy and Zoro eagerly meet the challenge - until a masked figure suddenly swoops in and kidnaps Medaka.

While Zoro holds off Ganzack's men, Luffy chases Medaka's kidnapper out of the tower and down to the shore, only for the kidnapper to reveal herself as Nami. At first puzzled, Luffy is shocked when the Plesiosaur reemerges with a pirate in crab-like armor atop it; this pirate is none other than Ganzack, and Nami has already thrown her allegiance to him.

Defiant, Luffy proves an even match for both Ganzack and the Plesiosaur, but eventually falls when Ganzack's armor sprays a powerful foam that binds his entire body. Shortly after, Ganzack's men force Zoro's surrender by threatening to fire on the slaves; as Zoro is taken away in chains, Herring quietly reassures his fellow slaves, and shows that he has smuggled some dynamite out of the pirates' munitions.

Soon, Luffy, Zoro, and Medaka find themselves shackled to a wall, forced to watch the Ganzack Pirates - and a disinterested Nami - feast and party. When Luffy continues to defy him, an annoyed Ganzack seizes Luffy's hat and stomps on it. Enraged, Luffy shouts that the hat is a treasure entrusted to him by Shanks, and - to Medaka's shock - proudly proclaims himself a pirate. Moments later, an explosion rocks the tower, as Herring leads the other villagers out in open rebellion.

While the Ganzack Pirates rush outside to quell the villagers, Nami cheerfully approaches the shackled trio, returns Luffy's hat, and flashes the keys to their shackles; all along, she had meant to double-cross Ganzack. As soon as Medaka is freed, however, she runs off by herself, now considering Luffy and his friends no better than the Ganzack Pirates.

Outside, having easily crushed the rebellion, Ganzack prepares to execute Herring as an example to the other villagers. As Herring braces himself, Medaka jumps in the way, her armor deflecting Ganzack's bullet. Unimpressed, Ganzack unsheathes the bladed pincers on his own armor, ready to kill both father and daughter - until Luffy, Zoro, and Nami join the fray.

The Straw Hats' arrival inspires the villagers to challenge the Ganzack Pirates anew, spurring Ganzack to reveal his ultimate weapon: the Devil's Tower itself. At his signal, the Plesiosaur tows the tower - along with him and his crew - apart from the rest of the island, revealing it to be the main cannon on a massive warship. To the villagers' horror, a single shot from this cannon sinks a good part of the island - and Ganzack means to keep shooting until he sinks it all.

As Luffy and Zoro prepare to engage, Herring desperately tries to hold Medaka back; though touched by her father's concern, Medaka refuses to stay behind, and grabs on as Luffy rockets himself and Zoro onto the ship. Onboard, Zoro engages Ganzack's men, while Luffy confronts Ganzack himself atop the mainmast. Now prepared for the projectiles in Ganzack's armor, Luffy presses his advantage, until Ganzack binds him in a long, powerful chain.

Ganzack Defeated by Luffy

Luffy lands his first successful hit on Ganzack.

Gloating, Ganzack swings his pincers in for a killing blow, only for Medaka to once again block him - and fall, her armor unable to withstand the razor-sharp blades. Shocked by her sacrifice, an enraged Luffy shatters his chains and forces Ganzack into melee, quickly overpowering him and his armor with a Gomu Gomu no Tsuchi. Moments later, Luffy finds himself being applauded by Medaka, who cheerfully reveals that Ganzack had only sliced off the top half of her helmet.

Meanwhile, Zoro finishes off the last of Ganzack's men, and prepares to confront the Plesiosaur, but is beaten to it by a small fleet comprised of Nami, Herring, and the rest of the villagers. Together, they send a small fireship - filled with the Ganzack Pirates' spare dynamite - against the Plesiosaur, sinking both it and Ganzack's warship.

Refusing to admit defeat, Ganzack clambers to his cannon and fires one last shot at the island, all the while proclaiming himself the future Pirate King. In response, Luffy scornfully punches him into the sky, on a collision course with his own shell. As Ganzack is swallowed by a huge explosion, Medaka helps Luffy off the sinking warship, and back to the island.

Some time later, the Straw Hats prepare to depart, the grateful villagers having supplied them a new boat and plenty of food (though Nami remains disappointed over the Ganzack's lack of valuables). To Luffy's surprise, Medaka runs up with a gift of her own: a life preserver, to prevent future drowning mishaps. She then teases Luffy about his "hammer" status, while Nami and Zoro quietly smile at the "thank you" scrawled on the gift's underside.

With Medaka's encouragement, the Straw Hats sail off into the sunset, hopes aimed for the Grand Line.


Character Japanese VA
Monkey D. Luffy Urara Takano
Roronoa Zoro Wataru Takagi
Nami Megumi Toyoguchi
Ganzack Norio Wakamoto
Medaka Jun Tanaka
Herring Ikuya Sawaki
Skid Takkou Ishimori
Narrator Ikuya Sawaki


Promotional ArtworkEdit

Luffy OVA1
Zoro OVA1
Nami OVA1


Eiichiro Oda attended one screening of this OVA, and wrote of it afterward:

The "Jump Super Anime Tour '98" is a really fun tour where three Jump series are going to be turned into movies, and shown in theaters all over the country.

And therefore, "One Piece" was made into a short, original anime movie.

The subtitle of the movie is "Defeat the Pirate Ganzack!" It's an original story that Luffy, Zoro and Nami appear in, unrelated to the One Piece story.

In anime, a lot of different professionals come together to produce a single show. Directors, writers, character designers, storyboard artists, art directors, colorists, cinematographers, editors, developers, sound artists, musicians, quality control, sound recorders, workers, producers, animators, voice actors, etc. It's amazing. It makes me want to cry.

The final product is fantastic! Luffy and friends' voices, movements and sounds are even better than I had imagined them!![1]

One Piece OVA 1998 Cover

The cover of the novel.

Oda also presented a few sketches with the main characters of the OVA, in the 5th volume of One Piece.

The OVA's story was later novelized by Tatsuya Hamazaki.[6]


  • Three of the voice actors in this OVA would later participate in the Toei anime:


  1. One Piece Manga - Vol. 5 Chapter 36 page 28
  2. One Piece Manga - Vol. 5 Chapter 37 page 48
  3. One Piece Manga - Vol. 5 Chapter 38 page 70
  4. One Piece Manga - Vol. 5 Chapter 39 page 90
  5. One Piece Manga - Vol. 5 Chapter 41 page 148

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Defeat Him! The Pirate Ganzack
Characters: Ganzack Pirates (Ganzack  •  Plesiosaur  •  Herring)  •  Medaka  •  Skid
Locations: Devil's Tower
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Plot of One Piece
Sea of Survival: Super Rookies Saga
East Blue: Romance Dawn  •  Orange Town  •  Syrup Village  •  Baratie  •  Arlong Park  •  Loguetown
Cover Stories: Buggy's Crew Adventure Chronicles  •  Diary of Koby-Meppo
Alabasta: Reverse Mountain  •  Whisky Peak  •  Little Garden  •  Drum Island  •  Alabasta
Cover Stories: Jango's Dance Paradise  •  Hatchan's Sea-Floor Stroll
Sky Island: Jaya  •  Skypiea
Cover Stories: Wapol's Omnivorous Hurrah  •  Ace's Great Blackbeard Search
Water 7: Long Ring Long Land  •  Water 7  •  Enies Lobby  •  Post-Enies Lobby
Cover Stories: Gedatsu's Accidental Blue-Sea Life  •  Miss Goldenweek's "Operation: Meet Baroque Works"  •  Enel's Great Space Operations
Other: Where They Are Now
Thriller Bark: Thriller Bark
Other: Where They Are Now
Summit War: Sabaody Archipelago  •  Amazon Lily  •  Impel Down  •  Marineford  •  Post-War
Cover Stories: CP9's Independent Report  •  Straw Hat's Separation Serial
The Final Sea: The New World Saga
Fish-Man Island: Return to Sabaody  •  Fish-Man Island
Cover Stories: From the Decks of the World
Dressrosa: Punk Hazard  •  Dressrosa
Cover Stories: Caribou's Kehihihihi in the New World  •  Solo Journey of Jinbe, Knight of the Sea
Yonko: Zou  •  Whole Cake Island  •  Levely  •  Wano Country
Cover Stories: From the Decks of the World: The 500,000,000 Man Arc  •  The Stories of the Self-Proclaimed Straw Hat Grand Fleet
Filler Arcs: Warship Island  •  Post-Alabasta  •  Goat Island  •  Ruluka Island  •  G-8  •  Ocean's Dream  •  Foxy's Return  •  Ice Hunter  •  Spa Island  •  Little East Blue  •  Z's Ambition  •  Caesar Retrieval  •  Silver Mine  •  Marine Rookie
Movies: One Piece: The Movie  •  Clockwork Island Adventure  •  Chopper's Kingdom on the Island of Strange Animals  •  Dead End Adventure  •  The Cursed Holy Sword  •  Baron Omatsuri and the Secret Island  •  The Giant Mechanical Soldier of Karakuri Castle  •  Episode of Alabasta: The Desert Princess and the Pirates  •  Episode of Chopper Plus: Bloom in Winter, Miracle Sakura  •  One Piece Film: Strong World  •  One Piece 3D: Straw Hat Chase  •  One Piece Film: Z  •  One Piece Film: Gold  •  One Piece: Stampede
Featurettes and Specials: Adventure in the Ocean's Navel  •  Jango's Dance Carnival  •  Dream Soccer King  •  Take Aim! The Pirate Baseball King  •  Open Upon the Great Sea! A Father's Huge, HUGE Dream!  •  Protect! The Last Great Performance  •  The Detective Memoirs of Chief Straw Hat Luffy  •  Mugiwara Theater  •  Episode of Nami  •  Episode of Luffy  •  Episode of Merry  •  3D2Y  •  Episode of Sabo  •  Adventure of Nebulandia  •  Heart of Gold  •  Episode of East Blue  •  Episode of Sky Island  •  Romance Dawn
OVAs: Defeat Him! The Pirate Ganzack  •  Romance Dawn Story  •  One Piece Film Strong World: Episode 0  •  One Piece Film: Gold Episode 0
Other Related Stories
Supplementary Stories: Monsters  •  Chapter 0  •  One Piece novel A  •  One Piece novel Straw Hat Stories
Omake: Report Time  •  Obahan Time  •  Jingi-nai Time  •  Chopper Man  •  Monster Time  •  Space Time  •  Red-Hair of Class 3 - Sea Time  •  Marchen Time  •  Family Time  •  Ed Sullivan Show  •  Detective Loomes  •  Circus Time  •  RPG Time  •  4-Panel Strips  •  Orchestra of the Sea
Crossovers: Cross Epoch  •  One Piece x Toriko Crossover  •  Episode 492  •  Episode 542  •  Episode 590
One Shots: Romance Dawn  •  Special Episode "Luff"
Events: Kyutai Panic Adventure! (Kyutai Panic Adventure Returns!)  •  One Piece Premier Show  •  One Piece x Kyoto
[v · e · ?]
Ganzack Pirates
Members: Ganzack  •  Plesiosaur  •  Herring   •  Nami 
Locations: Devil's Tower
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OVA: Defeat Him! The Pirate Ganzack