One Piece Characters Guide: Too Broken Anime

Eiichiro Oda has introduced an enormous cast of One Piece characters over the years—on the order of an almost ridiculous “a billion” when you include every named figure, background pirate, and one-off appearance. Most of them belong to the main series, but just like any long-running battle shonen, the franchise also has plenty of extra material that isn’t treated as canon. The movies are the most obvious place to look for this kind of filler, yet some of the most overpowered characters in One Piece actually show up in the games.

For the most part, One Piece video games stick to canon characters and rarely create brand-new ones. When they do make exceptions, the additions tend to come from the better-received releases. These figures fit their own game narratives surprisingly well, but their kits are typically too “gamey” or too mechanically dominant to slot cleanly into the canon story without breaking the balance of the setting.

Only non-canon video game characters.

5 Adio Suerte Can Take Control Of Weapons, Animals, And Maybe Even People

The World Government’s Future Is in His Hands

Appears in One Piece Odyssey
Devil Fruit: Kote Kote no Mi

Adio Suerte kicks things off as the main antagonist of what’s framed as the biggest One Piece game. He’s written as sympathetic despite the role he plays, with a motivation rooted in loss and a revenge that still feels understandable. The World Government wiped out his entire tribe, leaving him as the lone survivor. From there, he sets his sights on obtaining a devastating tool known as the Divine Breath—an option meant to erase the organization that ruined his life. Even before he gets the Divine Breath, Adio is already presented as nearly “Emperor-level,” backed by an extremely high bounty that signals just how threatening he is.

One Piece is full of standout Devil Fruits that get used creatively, but there are also exceptions—powers that feel like wasted potential rather than meaningful threats. Adio’s Kote Kote no Mi falls into that second category. The ability conjures two enormous gauntlets, enabling him to drive enemies into oblivion with brute-force strikes. That’s the straightforward part, though, and not even close to the most important function.

The real danger is control. Adio can take command of anything he’s able to grasp with those gauntlets, which includes animals—and even people. That opens the door to brainwashing targets who may not have the will to fight back. His threat level is elevated even further because this Devil Fruit gives him access to ancient mass-destruction-grade weaponry like the Divine Breath, making him one of the rare characters capable of wielding that kind of catastrophic power.

One Piece is stacked with incredible Devil Fruits that are used well…but there are exceptions. These Devil Fruits are wasted potential.

4 Fang Is Basically Doctor Moreau

Caesar Has Nothing On This Scientist

Appears in One Piece: Chopper’s Big Adventure
Devil Fruit: None

Nearly all of One Piece’s strongest fighters lean on Devil Fruits, and without that supernatural backbone they wouldn’t match up to the power ceiling the series demands. Still, the franchise occasionally introduces someone who can reshape the world without having any Devil Fruit powers—and in fact, three of the most dangerous characters in the game space are found only in games.

Fang is the mad scientist villain of the mostly forgotten WonderSwan title Chopper’s Big Adventure. He discovers a method to mutate humans into animal hybrid forms, effectively producing chimeras. His “bioweapon” is also easy to trigger in practice: when the Straw Hats land on Fang’s island, they automatically transform into animals.

Chopper eventually pieces together a cure, and that’s a big part of why the story can move forward. But by any standard, Fang’s achievements are astounding. He doesn’t just dabble in grotesque experimentation—at the end, he even transforms into a large wolf-like hybrid himself. The setup in Chopper’s Big Adventure feels like it’s positioned around the Arabasta arc, roughly a decade before Caesar Clown begins his own experiments on humans. If that timeline holds, Fang’s breakthrough would undercut the later importance of Zoan Devil Fruits, especially since in the anime Zoans don’t become a constant fixture until much later.

I couldn’t quite get an image of Fang, but the two photos showcase his skills. The first image has Zoro as a tiger, while the second features Robin as a parrot.

3 Isaac Created World-Breaking Technology

Making Full Use Of Sea Prism Stone

Image from Bandai Namco Entertainment
Image from Bandai Namco Entertainment
Image from Bandai Namco Entertainment

Appears in One Piece: World Seeker
Devil Fruit: None

Much like Fang, Isaac proves that you don’t always need a Devil Fruit to tilt One Piece’s power scale in your favor—if you can compensate with the right intellect and machinery. Isaac serves as the warden of Jail Island, and his authority is enforced with an iron grip, in a way that’s almost literal. Instead of relying on a fruit-based gimmick, Isaac leans on advanced engineering to control the battlefield.

In One Piece, Sea Prism Stone is treated like a rare, high-value resource, mainly used to keep pirates contained. In World Seeker, Isaac turns that restraint into an offensive asset by building a battlesuit whose arms are forged from seastone. With that, he can neutralize figures like Luffy before they fully understand they’re walking into a losing fight.

On paper, Isaac doesn’t sound like he should be capable of rewriting the universe. He’s confined to an isolated story and doesn’t connect directly to the rest of the franchise’s timeline. But the suit is the real problem: it introduces a technology that would absolutely reshape how power and combat work across One Piece. Even though Isaac openly hates the World Government, he’s still constrained to a degree by their control, which means they could reverse-engineer his seastone gear. If that happens, weak soldiers could be upgraded into fighters capable of overwhelming even powerful Devil Fruit users.

Identify the silhouettes before time runs out.

2 Lim Is The Most ‘Video Game’ One Piece Character

The Ultimate Reset Button

Image via Bandai Namco
Image via Bandai Namco
Image via Bandai Namco

Appears in One Piece Odyssey
Devil Fruit: None

When One Piece Odyssey set out to cover a few of the manga’s most famous sagas without simply retelling the familiar mainline beats, ILCA needed a mechanism to weaken the Straw Hats first. The goal wasn’t just to replay old moments—it was to let them relive earlier arcs in a way that would also justify them naturally reacquiring abilities. The solution is Lim, a woman who can remove someone’s memories with a single touch. The process also creates a “Mukashic Cube” as part of the mechanic. The person loses not only their recollection of those events, but also any combat enhancements they gained while living through them.

These are the strongest characters to sail the seas of the One Piece world.

This power isn’t tied to a Devil Fruit. Instead, it comes from lost technology on Waford Island that Lim has an organic link to. That makes Odyssey another game where science is treated as a threat that can push beyond One Piece’s established power framework. The canon universe already has memory-wiping and memory-manipulation abilities—like Sugar’s capability to erase or control people—but those are Devil Fruit powers, which means they can be explained within the series’ rules. Lim goes further than what canon normally allows, making her one of the most “mechanically designed” characters the franchise has produced.

1 Patrick Redfield & Pato Are Best Friends And Utterly Broken

The Vampire And His Raccoon Dog

Appear in One Piece: Unlimited World Red
Redfield’s Devil Fruit: Batto Batto no Mi, Model: Vampire
Pato’s Devil Fruit: Inu Inu no Mi, Model: Bake-danuki

Patrick Redfield and Pato show up as a paired duo in One Piece: Unlimited World Red, and both carry Devil Fruits that would cause serious chaos if they ever became official canon threats. Their combined kit is the kind of power set that feels like it was built for game balance rather than narrative balance—meaning it’s exactly the kind of thing that can’t be easily folded into the main storyline without breaking it.

Redfield is basically a vampire. That includes the usual abilities you’d expect, such as transforming into a bat or taking on a monstrous shape, but his truly broken trait is that he can steal someone’s life force to achieve eternal youth.
Pato can manufacture near-perfect replicas of people, complete with their memories, personalities, and even their Devil Fruit abilities. All he has to do is write their name on the leaf.

They’re presented as leftovers from the Great Pirate Era, and the story frames Redfield as being on the same level as Gol D. Roger. If he were ever integrated into canon early enough, he might avoid feeling completely out of place, but his Devil Fruit would still likely need nerfs to keep him from undermining the series’ threat structure. Pato, meanwhile, would straight up shatter One Piece’s usual boundaries—especially because the duplication extends beyond appearance and behavior into memories and abilities.