Hana Hana no Mi in One Piece

When Nico Robin was eight years old she ate the Hana Hana no Mi and gained its power. Due to eating this devil fruit, she had been treated like an outsider by the people of Ohara.

The Hana Hana no Mi is in the shape of a pink flower with a stem sprouting from the top. They have the usual curly swirls on them. This fruit resembles a pink dahlia.

The major strength of this fruit is its ability to sprout out multiple body parts from any part, including the user’s own body. The user can also manipulate these parts like they were an extension of their original parts. The user is the only one who is aware where their body parts will sprout out, this gives the fruit the element of surprise. This fact helps the user trap their enemies and they wouldn't be able to counter it. The user is also able to attack the enemies all at once. This devil fruit is quite versatile and allows the user to multitask.

Even though the Hana Hana no Mi is really powerful it still has some weaknesses. If any sprouted part of the user is injured, it directly affects the user’s body. This also applies to people whose devil fruit usage is physical touch. Even though they can increase the size of their sprouted parts, if the body part is gigantic then they are prone to be open to attacks. The sprouted limbs are the reflection of the user’s physical strength. The sprouted limbs are bound to the surface and they cannot move from their spot. These sprouted limbs are also vulnerable against any environmental hazards like fire. The user also needs to see the object in order to effectively sprout their limbs. Other than that they have the standard devil weakness, that is the inability to swim.

We can see that Nico Robin has been using her devil fruit powers since she was just a child. She was considered an outcast due to her bizarre powers. As a child, Robin used her devil fruit powers for self defense. As an adult, Robin used her devil fruit powers for combat. Her fighting style is replicating her arms on specific points of her opponents to either immobilize them, disarm them, or perform painful joint locks. When Robin activates her fruit's power, she usually crosses her arms in front of her like she is concentrating. She also uses her devil fruit powers for things other than combat, like for multitasking.

Robin can be seen using her powers to replicate her arms a lot. She tends to flood a pattern in which she says the number of arms she will sprout and from there it depends where she sprouts her arms. Aside from her arms, Robin can also replicate other parts of her body. These allow her to do a variety of things like helping her gain insight on her enemies or transporting anything or anyone.

After the timeskip, Robin had acquired new skills like being able to grow a thousand arms at once and also learning how to replicate her entire body. She also learned Fishman karate which helped her improve her fighting style.

The techniques used by Nico Robin are:

Dos Fleur

In this technique, Nico Robin sprouts out two arms and uses them to either grab her opponents or use those two hands to cover the opponent's mouth and then bend them backward with bone breaking.

Tres Fleur

In this technique, Nico Robin sprouts three arms and attacks her enemies. She uses two of her arms to restrain her enemies.

Cinco Fleur

In this technique, Nico Robin sprouts five arms and she can be seen using them as vines to swing.

Seis Fleur

In this technique, Nico Robin sprouts six arms. She uses this technique to twist her enemies, grabbing her enemy’s legs and making them fall backward. She also uses them to slap her enemies.

Ocho Fleur

In this technique, Nico Robin sprouts eight arms and uses them to flip up her opponents and clutch them.

Nueve Fleur

In this technique, Nico Robin sprouts nine arms and twists the bodies of her enemies.

Once Fleur

In this technique, Nico Robin sprouts eleven arms and slams down her enemies.

Doce Fleur

In this technique, Nico Robin sprouts twelve arms. She uses this to clutch and restrain her enemies.

Dieciséis Fleur

In this technique, Nico Robin sprouts sixteen arms.

Veinte Fleur

In this technique, Nico Robin sprouts twenty arms and we can see her using this to protect the ruins of Skypiea.

Calendula

In this technique, Nico Robin sprouts out twenty arms and wields a shield of old that helps her block attacks.

Twist

In this technique, Nico Robin sprouts a large number of arms from the torso of the opponent and then twists them around.

Treinta Fleur

In this technique, Nico Robin sprouts out thirty arms. She uses them to strangle or hang her enemies.

Ochenta Fleur

In this technique, Nico Robin sprouts eighty arms. She uses them to create gigantic arms to hold down her opponents.

Cuatro Manos

In this technique, Nico Robin uses her eighty hands and combines them into four giant hands.

Cien Fleur

In this technique, Nico Robin sprouts out a hundred arms. She uses these hundred arms to make wings to fly, makes spider webs to capture her enemies or act as a safety net. She also uses it to defend herself by making it a shield.

Delphinium

In this technique, Nico Robin uses her hundred arms to create a path with her hands in which she lifts up her opponents or allies.

Slalom Vine

In this technique, Nico Robin sprouts a large number of arms and connects them like a chord and winds it around her opponent and pulls them towards her.

Dos Manos

In this technique, Nico Robin sprouts a large number of hands to create two large arms. This helps her grab her opponents and then break them.

600,000,000 Belly Jackpot

This is a combo attack with Luffy, Sanji, Zoro and Franky. In this technique, Nico Robin is seen sprouting a large number of hands to grab her opponents to get them to her.

Ojos Fleur

In this technique, Nico Robin sprouts eyes so that she can see things over large distances.

Pierna Fleur

This is a combo attack with Chopper. In this technique, Nico Robin sprouts several feet under Chopper’s feet to increase his height so that he can perform his suplex move.

Oreja Fleur

In this technique, Nico Robin sprouts an ear to listen in on conversations.

Mil Fleur

In this technique, Nico Robin sprouts a thousand arms and uses them to create gigantic arms.

Gigantesco Mano

In this technique, Nico Robin creates two giant limbs which can be sprouted from anywhere. She uses them to stomp down on her opponents.

Campo de Flores

In this technique, Nico Robin sprouts a thousand arms across a large area to capture her enemies.

Kochoran

In this technique, Nico Robin creates hundreds of pairs of hands which are linked together by interlocking thumbs in a mouth-like appearance. This helps to divert an attack.

Hanagasa

In this technique, Nico Robin creates two giant hands, then several smaller hands that are growing from them.

Delphinium

In this technique, Nico Robin creates a path with one thousand arms that can systematically grab and roll her enemies down the path.

Fish-Man Karate: Giganteum

In this technique, Nico Robin creates a giant arm and then delivers an upward palm strike on an object, generating a circular shockwave of Fishman karate moves which causes stronger internal damage on whatever it hits.

Cuatro Mano

In this technique, Nico Robin combines forty arms together to form four gigantic arms.

Cuerpo Fleur

In this technique, Nico Robin sprouts a copy of her whole body anywhere she pleases. This clone is capable of moving on its own like a real person and can also dissipate easily.

Double Clutch

In this technique, Nico Robin sprouts a clone of herself which she uses to grab her opponent’s head and sprouts two extra pairs of hands to grab her opponent’s legs.

Sea Serpent

In this technique, Nico Robin grabs her opponents with her giant limbs, making them approach the enemy in a snake-like motion.

Demonio Fleur

In this technique, Nico Robin sprouts a giant copy of her upper body. She doubles her features to intimidate her opponents and make them lower their guard.

Q. What would happen if a hairy person ate the Hana Hana no Mi?

A. According to Oda, if the Hana Hana no Mi were eaten by a person with hairy arms, the arms that would be sprouted would also be hairy.

Q. What does Hana mean?

A. Hana in Japanese is the word for "bloom" and "flower", it reflects the nature of the user's power to sprout their body parts like a blooming flower.