The Rumble Ball (ランブルボール, Ranburu Bōru^?) is a yellow jaw breaker-like drug developed by Tony Tony Chopper through research (and a bit of an accident, according to the anime).

Contents 1 Usage 2 Side Effects 3 Trivia 4 References 5 Site Navigation

UsageEdit

Further information: Hito Hito no Mi

The "Rumble Ball", when eaten, gives Zoan-type Devil Fruit users additional transformations for three minutes by "distorting the wavelengths of transformation". Before the timeskip, Chopper uses it to gain four more transformations.

Early on, Chopper tends to say "Rumble" (ランブル, Ranburu^?) before consuming the drug.

After the timeskip, Chopper only needs one for Monster Point, which he originally had no control over, while all other forms he can change even without the enhancement.

Side EffectsEdit

As demonstrated and announced by Chopper, the Rumble Ball is not meant to be used casually, as distorting the nature of a Devil Fruit power is dangerous.

The amount of Rumble Balls taken must be closely monitored. If the user takes two within six hours, it causes them to lose control of their transformations. If a third one is taken within the six hours, the user transforms into a huge, virtually invincible monster that combines all the attributes of the other forms provided by the Rumble Ball.^[1] This monster form has no known time limit, but is dangerous to friend, foe, and the user, not only because the user loses their mind and attacks everything in sight, but also to maintain the transformation requires lethal amounts of energy, which could effectively lead the user to die from fatigue. The only known way to stop this is to use any Devil Fruit nullifying methods such as submerging the user in a body of water or Kairoseki (which "emits the same energy as the sea") to disable the user's powers.

However, after training for two years, Chopper seems to be able to control the transformation now and can stay in it for three minutes after eating just one Rumble Ball. On the other hand, when Franky, whose mind was switched into Chopper's body, took one Rumble Ball, he instantly transformed into the Monster Point and lost all rationales, attacking friend and foe alike.^[2]

TriviaEdit

• According to an SBS, if Chopper eats four Rumble Balls, the author goes wild.^[3] In this state, Chopper returns to his Brain Point, but with extreme facial changes: his face becomes rectangular with his cheeks jutting out, his nose growing big, with a toothbrush mustache underneath, and thick lips. He also grows human ears, and his hat turns upside down, and merges with his forehead, with the "X" in the center.
• According to another SBS, if Oda ate three Rumble Balls, then he would grow out to be a giant.^[4]
• In the anime only, during the first round of the Davy Back Fight's second 3 coin game Chopper took a second Rumble Ball within a matter of minutes of his first wearing off and showed no side effects. This is due to the manga having yet to reveal such side effects when the filler episode came out.
• The Rumble Ball's name and appearance resembles real-life rum balls, a truffle-like confectionery.

ReferencesEdit

1. ↑ One Piece Manga and Anime — Vol. 42 Chapter 407 and Episode 209, The effects of two and three Rumble Balls consumed are explained.
2. ↑ One Piece Manga — Chapter 667, Franky lost control after taking one Rumble Ball.
3. ↑ SBS One Piece Manga — SBS Volume 48, "Very good, sir. → (Picture) When he eats three, his Devil Fruit Powers go wild, but if he eats FOUR Rumble Balls, the author goes wild."
4. ↑ SBS One Piece Manga — SBS Volume 58, Fan question: "If you ate 3 rumble balls, what would happen? Please draw it. P.N. Chappy-"

Site NavigationEdit

Straw Hat Pirates Crew: Monkey D. Luffy  •  Roronoa Zoro  •  Nami  •  Usopp  •  Sanji  •  Tony Tony Chopper  •  Nico Robin  •  Franky  •  Brook Ships/Vehicles: Going Merry  •  Thousand Sunny  •  Shiro Mokuba I  •  Mini Merry II  •  Shark Submerge III  •  Kurosai FR-U IV  •  Brachio Tank V  •  Iron Pirate Franky Shogun  •  Shimashima Shopping  •  Karasumaru  •  Taru Tiger  •  Rocket Man  •  Tarumanma  •  Ma Ikkada Allies and Traveling Companions Individuals: Coby  •  Gaimon  •  Johnny  •  Yosaku  •  Nojiko  •  Genzo  •  Nefertari Vivi  •  Carue  •  Dorry  •  Brogy  •  Portgas D. Ace  •  Mr. 2 Bon Kurei  •  Gan Fall  •  Pierre  •  Conis  •  Pagaya  •  Aisa  •  Wiper  •  Kokoro  •  Chimney  •  Gonbe  •  Yokuzuna  •  Oimo  •  Kashi  •  Billy  •  Keimi  •  Pappug  •  Hatchan  •  Silvers Rayleigh  •  Boa Hancock  •  Haredas  •  Heracles  •  Buggy  •  Mr. 3  •  Emporio Ivankov  •  Inazuma  •  Crocodile  •  Jinbe  •  Mr. 1  •  Surume Organizations: Usopp Pirates  •  Saruyama Alliance  •  Galley-La Company  •  Franky Family  •  Thriller Bark Victim's Association  •  Rosy Life Riders  •  Whitebeard Pirates and Allies  •  Heart Pirates Filler: Akisu  •  Borodo  •  Apis  •  Ryu  •  Anaguma  •  Shuraiya Bascùd  •  Phoenix Pirates Abilities Devil Fruit Based: Gomu Gomu no Mi  •  Hito Hito no Mi  •  Hana Hana no Mi  •  Yomi Yomi no Mi Weapon Based: Art of Weather  •  Usopp's Arsenal  •  Cyborg Tactics/Armored Me Fighting Style Based: Santoryu  •  Black Leg Style  •  Fencing Style Support Abilities: Haki  •  Rumble Ball

Devil Fruits Paramecia Canon: Gomu Gomu no Mi  •  Bara Bara no Mi  •  Sube Sube no Mi  •  Kilo Kilo no Mi  •  Bomu Bomu no Mi  •  Hana Hana no Mi  •  Doru Doru no Mi  •  Baku Baku no Mi  •  Mane Mane no Mi  •  Toge Toge no Mi  •  Supa Supa no Mi  •  Ori Ori no Mi  •  Bane Bane no Mi  •  Noro Noro no Mi  •  Doa Doa no Mi  •  Awa Awa no Mi  •  Beri Beri no Mi  •  Sabi Sabi no Mi  •  Shari Shari no Mi  •  Yomi Yomi no Mi  •  Kage Kage no Mi  •  Horo Horo no Mi  •  Suke Suke no Mi  •  Nikyu Nikyu no Mi  •  Ope Ope no Mi  •  Mero Mero no Mi  •  Doku Doku no Mi  •  Horu Horu no Mi  •  Choki Choki no Mi  •  Gura Gura no Mi  •  Woshu Woshu no Mi  •  Fuwa Fuwa no Mi  •  Mato Mato no Mi Filler: Goe Goe no Mi  •  Hiso Hiso no Mi  •  Kama Kama no Mi  •  Kachi Kachi no Mi  •  Nemu Nemu no Mi  •  Mini Mini no Mi  •  Atsu Atsu no Mi  •  Noko Noko no Mi  •  Ami Ami no Mi SBS: Samu Samu no Mi  •  Gero Gero no Mi Zoan Canon: Ushi Ushi no Mi, Model: Bison  •  Hito Hito no Mi  •  Tori Tori no Mi, Model: Falcon  •  Inu Inu no Mi, Model: Dachshund  •  Mogu Mogu no Mi  •  Inu Inu no Mi, Model: Jackal  •  Uma Uma no Mi  •  Neko Neko no Mi, Model: Leopard  •  Zou Zou no Mi  •  Inu Inu no Mi, Model: Wolf  •  Ushi Ushi no Mi, Model: Giraffe  •  Hebi Hebi no Mi, Model: Anaconda  •  Hebi Hebi no Mi, Model: King Cobra  •  Hito Hito no Mi, Model: Daibutsu Filler: Tori Tori no Mi, Model: Eagle Logia Canon: Moku Moku no Mi  •  Mera Mera no Mi  •  Suna Suna no Mi  •  Goro Goro no Mi  •  Hie Hie no Mi  •  Yami Yami no Mi  •  Pika Pika no Mi  •  Magu Magu no Mi  •  Numa Numa no Mi  •  Gasu Gasu no Mi Filler: Toro Toro no Mi  •  Ame Ame no Mi  •  Pasa Pasa no Mi