In the world of One Piece, not everyone fights using the same methods and techniques. Some individuals rely on the power of Devil Fruits, while others harness the strength of Haki. However, there are many who employ unique fighting styles that stand out in battles.
Below are some of the most impressive fighting styles in One Piece:
8. Hasshoken
User: Don Chinjao, Sai, Boo
First Appearance: Chapter 715 manga, Episode 645 anime

The Chinjao family has a unique martial art known as Hasshoken, allowing the user to control the vibrations of their body to create powerful shockwaves. This enhances the strength of their physical attacks significantly. In his prime, Don Chinjao was capable of clashing with Monkey D. Garp. His grandsons, Sai and Boo, are also skilled practitioners of Hasshoken.
7. Ryusoken
User: Sabo
First Appearance: Chapter 737 manga, Episode 670 anime

Before consuming the Mera Mera no Mi, Sabo developed a fighting style called Ryusoken, which focuses on using his hands and fingers to create a Long Dragon Claw attack. His martial arts strength is further enhanced by using Busoshoku Haki, making him a formidable opponent against any Navy or Marine forces. After consuming the Mera Mera no Mi, Sabo’s Ryusoken became even more powerful.
6. Okama Kenpo/Newkama Kempo
Users: Bon Clay, Emporio Ivankov, Caroline
First Appearance: Chapter 160 manga, Episode 103 anime

Okama Kenpo and its upgraded version, Newkama Kempo, exemplify a unique fighting style in the One Piece world that showcases creativity and flamboyance. Initially introduced by Bon Clay, Okama Kenpo focuses on the idea of using theatrical movements to execute powerful attacks. Meanwhile, Newkama Kempo allows Emporio Ivankov to combine his physical strength with makeup and costumes to perform various powerful attacks.
5. Shuron Hakke
User: Kaido
First Appearance: Chapter 1037 manga, Episode 1064 anime

There are many reasons why Kaido is considered the “strongest creature” in the One Piece world, including his enormous size, years of battle experience, and mastery of various forms of Haki. Kaido has also created a distinctive fighting style known as Shuron Hakke, which enables him to harness the power of his drunken state, making it difficult for opponents to predict his moves while simultaneously enhancing his Haki strength.
4. Black Leg Style
User: Sanji, Zeff
First Appearance: Chapter 54 manga, Episode 25 anime

Sanji, a key member of the Straw Hat Pirates, has a unique fighting style called Black Leg Style, which he learned from Zeff. This style emphasizes the use of legs and powerful kicks, allowing Sanji to fight without using his hands, which he considers precious as a chef. The most notable technique in Black Leg Style is Diable Jambe, which allows Sanji to heat up his legs to unleash devastating kicks.
3. Santoryu (Three Sword Style)
User: Roronoa Zoro, Jigoro, Humandrills, Isshin Dojo students
First Appearance: Chapter 6 manga, Episode 3 anime

One Piece is filled with powerful swordsmen, and all have unique fighting styles based on the number of swords they wield at once. However, if there’s a particular style that stands out in the series, it would be Santoryu, created and popularized by Roronoa Zoro of the Straw Hat Pirates. This style allows Zoro to fight using three swords simultaneously: one in each hand and one in his mouth. After facing formidable opponents like Daz Bones, Pica, and King, Zoro’s mastery of Santoryu is helping him get closer to the level of the legendary swordsman Dracule Mihawk.
2. Rokushiki
User: Rob Lucci, Kaku, Stussy, Koby
First Appearance: Chapter 343 manga, Episode 242 anime

Many agents and officers of the World Government have trained in Rokushiki, a martial art that combines powerful techniques for use in combat. The techniques include Geppo, Tekkai, Rankyaku, Soru, Shigan, and Kami-e. All of these techniques are incredibly useful and effective in battle.
Rob Lucci is the most famous user of Rokushiki, having mastered the style to the point where he can unlock the secret technique Rokuogan, a hidden technique of immense power. Other notable users of Rokushiki include Kaku, Stussy, Who’s Who, and Koby, all of whom exhibit considerable strength from this martial art.
1. Fish-Man Karate/Fish-Man Jujutsu
Users: Jinbe, Aladine, Kuroobi, Koala, Nico Robin
First Appearance: Chapter 84 manga, Episode 39 anime

Characters who have mastered Fish-Man Karate are particularly effective in combat, as they can manipulate water around them or in the air to perform powerful attacks. This ability is especially important in a world dominated by the ocean and those who wield the power of the sea.
The most notable user of Fish-Man Karate is Jinbe, who is also a prominent figure in Fish-Man Jujutsu, another martial art that focuses on using water to strike and throw opponents. By mastering both styles, Jinbe can execute formidable techniques like Karakusagawara Seiken, Gosenmaigawara Shuto, and Uzushio Ipponzeoi against various foes, including Jailer Beasts and Who’s Who.
The best aspect of Fish-Man Karate and Fish-Man Jujutsu is that they can be utilized not only by Fish-Men but also by humans. Both Koala and Nico Robin have incorporated Fish-Man Karate into their own fighting styles, thereby enhancing their own combat abilities.