One Piece: Pirate Warriors 4 Review

When One Piece: Pirate Warriors 4 first launched years ago. It was the next big project that Omega Force's Musou formula worked on with one of the world's most beloved anime worlds. Even back then, the game was based on the idea of chaos, with combos that crush the enemy team, special moves that shake the screen, and the kind of arena-wide destruction that could only come from a Musou version.

People were surprised by how long the game was able to stay alive. In the year 2025, you would think that a Musou game from the early days of the Switch would be buried under a bunch of younger, more exciting games. We're talking about Pirate Warriors 4 again, though, because it's getting a lot of attention after big speed updates, new character drops, and even a big Switch 2 patch that brings the game back to life after everyone thought it was over.

It was clear that Omega Force and Bandai Namco didn't want to put out the light. 

Yeah, the game came out a long time ago, but it keeps coming back. One Piece: Pirate Warriors 4 mostly follows the main plots of the anime, but it is known to take some liberties, especially with the Wano plotline. The tasks in the game are based on cinematic retellings that match the energy of the anime. This is true whether you're fighting Kaido's forces, marching through the Whole Cake Island escape, or watching the Straw Hats split up and reunite across chaotic battlegrounds.

There isn't a lot of depth to the story; instead, it's more like a directed highlight reel. You get short cutscenes, scenes that are repeated, and boss fights that are blown out of proportion. But it works because it knows what its audience wants: this is a show-driven action experience that is meant to go along with anime, not replace it.

You'll face a lot of enemies, story beats, and character moments in each task. Every once in a while, it drops even stranger surprises, like the famous "Naked Rob Lucci" model bug, which people still joke about and sometimes choose on purpose to cause chaos.

Where are my new plots? Well..here is the thing.

At its core, this is still a Musou game. You can expect to press buttons, launch huge area attacks, kill thousands of enemies in minutes, and feel like an invincible force as you clear whole zones. For each character, the moves they can do are combos, aerial strings, dash stops, and special attacks that look cool.

But One Piece: Pirate Warriors 4 added more complex gameplay than the previous games. There are now different ways to fight with each character, called "Power," "Speed," "Technique," and "Sky." Each style changes how you approach battles. Power users work on their super armor and grounded power. Types that move quickly zip across the battlefield. Sky types, like Luffy's Gear 4, can stay in the air for a long time when they fight at high speeds.

The Switch 2 improvement makes games run more smoothly, in particular. Frame drops that used to happen a lot in big fights are mostly gone now, so you can chain attacks without having to wait. Just that makes the game feel different—it's just more immediate.

You can move quickly, special meters fill up quickly, and stage goals are always pulling you toward new places. It's typical Musou chaos, but the charm of One Piece makes it fun to play even after all these years..

Combat in Musou games is usually pretty easy, but Pirate Warriors 4 adds more depth without making the game harder to play. The rules for combat are a mix of Light groups, A lot of winners, Changes that happen, how to do an aerial juggle, Prices for deals, the Ability to direct a crowd, and Benefits based on style.

Meeting bosses is like solving a small puzzle. A lot of captains and leaders have armor gauges that need to be broken in order to stun them. In some fights, you have to use special attacks as bait or hit weak spots during animations. Others are about controlling zones—taking them over, moving allied NPCs forward, or stopping enemy reinforcements from taking over goals.

This mix keeps things interesting. You're not just killing a lot of people; you're also breaking armor, keeping track of cooldowns, moving styles, and making moves work better together.

Even so, it's not perfect. For people who aren't used to Musou games, combat is still repetitive. Big enemies can feel soft, and later rounds can feel like you just have to hit the boss, dash away, and do it again.

Get ready to smash everything you see.

One Piece: Pirate Warriors 4's game and battle system is very fun to play because it has a lot of great features. The fighting is quick, fun, and great for a power-fantasy game. Players will feel unstoppable as they chain combos and unleash powerful attacks. 

Style-based play makes the game more interesting, especially when it comes to the aerial fighting system, which lets you dodge enemies and keep going. Boss fights also add a subtle strategic element; weak spots and armor breaks give battles a rhythm that keeps players thinking, even when things are going crazy.

The method does have some flaws, though. For people who aren't used to Musou repetition loops, long sessions of fighting can get boring. Some goals in different story arcs feel too much like they belong in the same category, which can make the game less interesting as you go. 

Also, some character models, especially older ones, look awkward or out of date when compared to the more polished younger characters. Even with these problems, the combat loop is still fun and addictive, and the better stability of current hardware makes the whole experience better, making battles smoother and more fun than ever.

Grinding XP and character development are simple but surprisingly fun parts of the game. By killing enemies, finishing missions, and reaching goals, players earn experience points. These points can then be used to unlock upgrades like stronger attacks, better defenses, more skill slots, new combos, special moves, and even the ability to change your character. 

Customizing how each character's stats grow is possible with the character maps. This makes the grinding process feel important instead of boring. Some players even go after tasks with the highest level of difficulty just to level up faster. This makes it more difficult for those who want to make their roster as good as it can be.

XP does more than just let you move forward; it also encourages you to play through old tasks with new characters. Putting time into leveling up multiple fighters opens up new ways to play and turns simple fights into creative combat shows. So, missions that might have seemed repetitive at first can turn into chances to try out new strategies, learn new moves, and fully enjoy the depth that lies beneath the surface of Musou combat's seemingly simple formula.

The game looks fairly good after all these years, especially after the Switch 2 patch. The character models are clearer, the effects are better, and the frame rate stays the same even when there are big fights.

One Piece: Pirate Warriors 4 would sometimes run slowly on older hardware, especially when big strikes like Luffy's King Kong Gun or Kaido's dragon-mode specials were used. Now, though, effects like explosions, dust, and particle swarms work easily and don't slow down the action.

The stages are big and bright, but they don't always have a lot of detail. There are still some files that look like they came from older engines, but the bright style helps hide them.

The biggest change is just smoothness—animations and performance finally match the action's size.

One Piece: Pirate Warriors 4 has some great sound design that doesn't get enough attention. The music is full of upbeat hybrid rock songs that go well with the fast pace of the game. The impact sounds are satisfyingly heavy, especially for attacks that cover a big area, and the voice lines give every battle personality.

One problem is that some tracks still loop in a weird way, especially when tasks last a long time. But all in all, the game's soundtrack makes the show better. The Switch 2 update also fixed the way the sound was balanced. In earlier versions, character lines were sometimes lost under effects, but that's mostly been fixed.

One Piece: Pirate Warriors 4 feels like a new game in the year 2025. It's not just nostalgia or old hype—it's a new speed boost, fresh character drops, and a surprisingly passionate community that have made it one of the most durable Musou games ever.

The story mode is a reel of the most famous plots. The fighting is still very exciting and addictive. Even though the gameplay is boring at times, it is still a lot of fun. And the patch for Switch 2 pretty much fixes the biggest problems with the first version.