The Ordeals (試練 Shiren?) are four sacred and nearly impassable trials. Each Ordeal is overseen by one of the four priests serving under Enel. The chances of survival in each of the Ordeals is very slim, but both the Straw Hat Pirates and the Shandia tribe managed to overcome the odds.
To enter one of the Ordeals, people must go to the Entrance of Ordeals and choose which Ordeal they want to face.
Each priest controls a different section of territory on Upper Yard. Whoever enters the Ordeal must fight the Priest assigned to that territory. Each priest uses a different kind of special cloud in their Ordeal, which is where each Ordeal gets its respective name. Furthermore, unless a special exception is made, each priest is limited to their own territory and cannot interfere with another priest's Ordeal.
Ordeal of Balls
This Ordeal has many spherical clouds known as “Surprise Balls”; when these clouds are touched, something random will emerge, from snakes or explosions to harmless things like flowers and birds. (Satori considers the harmless balls to be "duds.")
Navigating a boat on the Milky Road that winds through the forest is the only way to succeed, and Satori's task is to separate the victims from their boat and prevent them from boarding it again before it leaves the forest.
This trial was the first choice of Luffy when he, Usopp, and Sanji went into the Upper Yard, searching for the others who were kidnapped, and though Satori's Mantra abilities and experience with Sky Warfare flustered them, they ultimately conquered him and his trial.
In the English version of Pirates Carnival and FUNimation's edited-for-TV dub, it's called the I.Q. Orb Test, but in the FUNimation's uncut DVDs, it's called the Ordeal of Spheres. It first appeared in Chapter 246 and Episode 160.
Ordeal of Iron
This Ordeal utilizes Iron Clouds; a type of cloud as strong and as durable as metal, while still retaining a cloud's weightlessness and ability to change shape. Ohm uses a sword with a blade made of Iron Cloud as the primary way to kill his victims. In addition, he rigs his territory with Milky Dials full of Iron Cloud, which are linked to pressure plates on the ground. If his victim steps on one of these plates, the Dials shoot the Iron Cloud out in the form of barbed wire, shredding them.
Furthermore, this Ordeal has an attribute known as the White-Barbed Iron Deathmatch (白荊デスマッチ Shiroibara Desumacchi?), a dome made of the barbed wire, creating a cage, stopping their victims from escaping. It was later shown to be all barbed wire, making it lethal to get stuck in it. Zoro originally commented on how it was unnecessary, since he did not have any intentions to run away.
Tony Tony Chopper and Zoro were the only ones to take on this Ordeal, and though the former lost easily, the latter managed to overpower Ohm's Eisen Dial-powered sword and defeat him.
In the English version of Pirates Carnival and FUNimation's edited-for-TV dub, it's called the I.Q. Iron Test, but in the FUNimation's uncut DVDs, it keeps its original name. It first appeared in Chapter 251 and Episode 164.
Ordeal of String
This Ordeal makes use of String Clouds; very long, extremely thin, nearly invisible string-like clouds that have high tensile strength. Shura places many long strands of String Cloud throughout a large area of forest. Travelers who pass through the area are slowly entangled in the Clouds and do not notice it until they can no longer move. Shura is then free to finish off his victims using his heat lance and Fuza's fire breath.
This is the only ordeal that was not passed by one of the Straw Hats.
In the English version of Pirates Carnival and FUNimation's edited-for-TV dub, it's called the I.Q. String Test, but in the FUNimation's uncut DVDs, it keeps its original name. It first appeared in Chapter 256 and Episode 164.
Ordeal of Swamp
This Ordeal is filled with Swamp Clouds; extra thick clouds that function like quicksand. If one were to get caught in a swamp cloud, they would sink. The area is filled with these sinking clouds, making it difficult to navigate. To make matters worse, Gedatsu can throw Swamp Clouds on his victims' heads. The cloud can cause whoever gets caught in it to suffocate, since no air exists inside of it. It is nearly impossible to remove the cloud as it is not solid. Gedatsu also uses Jet Dials to give a boost to his punches and Milky Dials on his shoes allow him to fly, as well as making him close to immune to sinking (unless he falls in headfirst).
In the English version of Pirates Carnival and FUNimation's edited-for-TV dub, it's called the I.Q. Swamp Test, but in the FUNimation's uncut DVDs, it keeps its original name. It first appeared in Chapter 251 and Episode 164, and is fully seen in Chapter 262.
- In FUNimation's made-for-TV dub, Enel mentions that the Q in "I.Q. Test" stands for 'cumulus.'
- In the anime, while approaching the Entrance of Ordeals, Usopp imagined what each ordeal might be based on their names.
- He imagined the Ordeal of Swamp to be sinking into a bottomless swamp.
- He imagined the Ordeal of Iron to be multiple large iron block being dropped on them from above.
- He imagined the Ordeal of String to be climbing across a string with the threat of falling back to the Blue Sea if they let go.
- He imagined the Ordeal of Balls to be a giant boulder rolling after the boat about to crush it.
- He stated that the Ordeal of String would probably be the worst because of how inoccent it sounded.
- One Piece Manga and Anime — Vol. 26 Chapter 246 and Episode 160, the Ordeal of Balls makes its debut.
- One Piece Manga and Anime — Vol. 27 Chapter 251 and Episode 164, the Ordeal of Iron makes its debut.
- One Piece Manga and Anime — Vol. 28 Chapter 256 and Episode 164, the Ordeal of String makes its debut.
- One Piece Manga and Anime — Vol. 28 Chapter 262 and Episode 172, Gedatsu states that Chopper's survival rate is 50%.
- One Piece Manga and Anime — Vol. 27 Chapter 251 and Episode 164, the Ordeal of Swamp makes its debut.