Tony Tony Chopper/History

No Disease is Incurable
Chopper was originally a reindeer with the slight oddity of a blue nose, which caused other reindeer to treat him as an outcast (always making him follow the herd from far back). However, when the young reindeer ate the Hito Hito no Mi, he was even more ostracized from his herd (and with the increase in intelligence granted by the fruit, now acutely aware of it) and struck out on his own. Unfortunately for Chopper, his attempts at communicating with the humans on Drum Island proved disastrous, he was shot by villagers who mistook him for the Abominable Snowman.

Luckily, though, he was rescued by the quack Dr. Hiluluk (Hiriluk in the English version), who named him and took him in as his friend and 'assistant.' Although his deeds were of dubious medical value, Dr. Hiluluk became Chopper's role-model. Hiluluk taught Chopper his philosophy on life (that all diseases could be cured) and his strong faith in the Jolly Roger as a symbol of strength against all odds. The two went from house to house, administering their "cures" in a country where all doctors not sanctioned by King Wapol were banned.

When Hiluluk's health took a turn for the worse, Chopper found himself left out in the cold once again as the old man didn't want Chopper to watch him die. But once Chopper found out what was going on, he was determined to find something to cure his mentor, his one and only friend. He soon found what he was looking for: a special kind of mushroom with skull-and-crossbones prominently displayed in the medical book, unaware of what that sign meant medically due to Hiluluk's praising of pirates and the jolly roger. Remembering what he overheard by some villagers that a "certain" type of mushroom can heal every illness, Chopper steals Hiluluk's favorite medical book to find the miracle mushroom. Chopper's arduous journey was a success, even though he risked his life and suffered many injuries, such as a broken left horn.



Hiluluk overwhelmed with tears of gratitude, ate the mushroom to show his love and appreciation to Chopper,(despite knowing that it would end his life) but Chopper would later find out from Dr. Kureha that he had given Dr. Hiluluk a fatal dose of poison. But Hiluluk was not to live much longer anyway. Declaring that he had a wonderful life (in the 4kids dub he declares he is a doctor)and after thanking Chopper, he committed suicide by blowing himself up outside of Drum Castle (before being killed by the poison, for Chopper's sake). Chopper, who had arrived to try and save him, was so upset over Hiluluk's death that and so angry that Wapol was making fun of it that then tried to attack him. Dalton, who had heard Hiluluk's last words and realised that the monster he called his son was trying to attack Wapol he then stopped him. He then, with tears in his eyes told him that he apologized for those who mocked Hiluluk death but that he could not beat Wapol if he could not beat him.

As for Hiluluk's last wish, Dr. Kureha (the last remaining doctor not owned by King Wapol) took Chopper in and taught him 'real' medicine for the next 6 years. Chopper worked as hard as he could, in order to become a doctor like his idol, Hiluluk.

Fall of the Drum Kingdom
However, Chopper's isolated life in Drum Castle (which he and Dr. Kureha annexed after King Wapol fled) would one day come to an end with the arrival of Monkey D. Luffy and his pirate crew. Chopper, naturally distrustful of humans, was not pleased, especially given Luffy and Sanji's desire to cook and eat him.

But when Chopper showed both his medical capabilities and his skills in battle against the returned forces of King Wapol, Luffy offered (forced) him the (as-yet unfilled) position of Ship's Doctor in his crew. While Chopper was at first unwilling to leave, he remembered Dr. Hiruluk wishing Chopper to sail seas to see the world on his own and with his desire to broaden his medical horizons, he decides to join Luffy and his crew.

Fleeing the castle with the Straw Hat Pirates, Chopper was given a send-off of gigantic proportions: Kureha had turned the snow into sakura blossoms, the very same that Hiruluk had researched over 30 years that would one day, cure the people of Drum of their "sickness of the heart," passed to Dr. Kureha as one of his last request before death. Overcome with tears, Chopper made a fond farewell to his birthplace and mentors, setting out to sea for the first time in his life.

War in Alabasta
The crew saw a Sea Cat as they neared Alabasta. Starving for food, they try to capture it but Vivi stop them since it was considered a sacred animal. As they pass through some steam from an underwater volcano, Luffy and Usopp caught an okama while fishing. As they waited for his crew to catch up, he entertains them with his Devil Fruit ability to copy other people's appearances, one of which was Vivi's father. When the man's crew caught up, he was revealed to be Mr. 2 Bon Kurei of Baroque Works. Knowing his abilities, they made an 'X' mark on their left arms to know when he was posing as one of them.

The crew landed in Nanohana where they encounter Smoker and Tashigi. A powerful pirate named Portgas D. Ace appears, and is revealed to be Luffy's older brother. Ace fights Smoker while the Straw Hats run for their ship. Ace catches up to them and gave Luffy a Vivre Card before departing. They docked their ship near the once 'green city' of Erumalu where they see the extent of the country's suffering as Vivi explained how Baroque Works was using Dance Powder to cause it. After tackling some of the dangers in the desert, they reach Yuba where they meet Toto, a friend of the royal family. They find out that the Rebel Army has moved out of Yuba and headed to Katorea, and the rebel leader Kohza, Toto's son and Vivi's childhood friend, is determined to attack.

The crew travels to the city of Rainbase to take down Crocodile and Baroque Works, but run afoul of Smoker and Tashigi. Luffy, Zoro, Nami, Usopp, and Smoker are trapped by Crocodile. Chopper distracts Crocodile while Sanji frees the rest of the crew, but find themselves trapped yet again. After escaping from Rain Dinners, Usopp and the crew together with Vivi crossed the desert to Alubarna, where the final battle will take place.

Crocodile, however, manages to catch Luffy, beginning the first round of their battle. The crew, excluding Luffy, proceeded to the Alubarna. As they reach the destination, they split up to distract the Baroque Works agents to engage their battle separately. At first Chopper was paired with Sanji when the two were pursed by Mr. 4 and Miss Merry Christmas, until Sanji left to check up on Usopp and Chopper had to fight by himself for a short while until Usopp came to assist him. The battle of Usopp and Chopper vs. the Mr. 4 team then began.



Things look hopeless for Usopp and Chopper as they continue to suffer from every attack that the Mr. 4 team makes. When Miss Merry Christmas tells them that Luffy is dead, Usopp refused to believe it, claiming that Luffy will become the next Pirate King. When she laughs at this, Usopp tells Chopper that a real man never lets his friend's dreams be laughed at and must fight for it no matter what. Albeit severely beaten and bruised, Usopp and Chopper finally defeated the Mr. 4 team.

Later, the Straw Hats hurried to locate the bomb before it goes off. Vivi figured out where the bomb was, and had Usopp call the Straw Hats together with a flare. She found it inside of the clock tower, but the Mr. 7 pair of Baroque Works were there. Vivi defeats them but realized the bomb cannot be stopped so easily. It has a timer, and right before it blows up, Pell shows up and takes it into the atmosphere, where he sacrifices himself to save Alubarna.

The Rebel and Royal armies continued to fight even after the bomb went off. It wasn't until it rained and Crocodile was revealed to be one behind the drought that they stopped. Tashigi and Smoker both were rewarded for taking on Crocodile, but neither one of them believed it was right since the Straw Hat pirates did all the work. Luffy rescued Nico Robin and Cobra from the collapsing tomb where he fought and defeated Crocodile. He was then brought to the palace to rest. When he awakened, a banquet is thrown for the pirates. They were then invited to enjoy the hotspring steam-room inside the palace.

Later that night, Mr. 2 Bon Kurei contacted them, telling them he prevented their ship from being taken by the Marines. The next day, the day of her speech, Vivi was to make a decision on whether or not she will stay on the crew. Meanwhile, Bon Kurei and his crew helped the Straw Hats escape from Hina so they could get to Vivi, who declined joining them for the sake of her country. Regardless, they all showed their 'X' mark to signify that they will still consider her as one of them. After escaping from the Marines, Nico Robin (Ms. All Sunday) appears from inside of the Straw Hats ship. She manages to persuade the crew to let her join since she had nowhere else to go.

Rumble in Jaya
Nami's Log Pose begins to point to the sky, after that, a big ship falls from sky and the crew finds a map in of an island named 'Skypiea' on a 200-year-old ship. They compete with the monkey-like Masira's salvage crew while they search for more clues on how to get there. The Straw Hats decide to go to Jaya island to look for information on Skypeia. The Straw Hats meet with Montblanc Cricket on another part of Jaya; Cricket is a descendant of Montblanc Noland, an infamous "liar" who told of a gold city on Jaya, and Cricket was outcast for looking for artifacts of the gold city. He may be the only person who knows how to get to Skypiea.

Cricket explains how the Straw Hats can ride a dangerous vertical current called the Knock Up Stream to get to Skypeia. However, they first have to catch a South Bird to point them toward the point where the stream will erupt from the ocean. While the Straw Hats are looking for a South Bird, Bellamy and his crew attack Cricket's house, and steal the gold artifacts he'd collected over the years from his salvage work. When the Straw Hats return and see what happened, Luffy decides to take a side trip back to Mock Town. The Going Merry is refitted by Masira and Shojo to be more flight capable, and the Straw Hats catch a ride on the Knock Up Stream for Skypeia.

Adventure in a Sky Island and Taking Down a God
They start from entering the Gate of Heaven. First they have been recommended by an old woman to pay their extol, but even they haven't pay the old woman let their pass. As they carried by a sky shrimp, they landed on a place that's surrounded by clouds. They met their Conis, a Skypiean. As their conversation continues about the waver, the White Berets interrupt them and labeling them as a criminal of illegal entrants. As Chopper along with Zoro, Nami and Robin aboard the ship, the shrimp suddenly carried them, Zoro tried to kill it but there's something behind. The shrimp leave them in the Sacrificial Altar. Zoro, Nami and Robin explored the land and leave Chopper as to guard the ship.

As he guarded the ship Shura, one of the priest suddenly appeared to eliminate him. He fight Shura with his ability but finds himself no match for the priest. He whistled the whistle to call Gan Fall. As Gan Fall appeared, they fight each other but in the end, Gan Fall is defeated. Gan Fall fell into the water surrounding the altar and Chopper jumped in to save him but cannot swim. Both Gan Fall and Chopper were saved from drowning by the giant south birds. Chopper is then told by the birds that Gan Fall is the former god. As the crew reunited, he is seen healing Gan Fall. They spent a night on the ship to regain more energy.



The next morning, Chopper explores the island together with Luffy, Zoro, and Robin to search for the gold but a giant python named Nola attacked them making them split. After finding himself all alone, Chopper was caught in the cross fire between Enel's enforcers and Shandians. Chopper eventually found himself on the Ordeal of Swamp where Gedatsu, one of the priests awaits there. He mustered up his strength and defeated Gedatsu. Confident on being on his own, Chopper proceeded to the Upper Yard, but he encounters Ohm, who defeated him. He regained consciousness when Luffy finally rang the bell.

Later he was seen joining in the celebration. The next day, the crew has collected a large amount of gold when a group of Skypieans arrive with Robin bringing a large gold post, but the rest of the Straw Hats mistake it for a large cannon and they start running to their ship. They manage to return to the Blue Sea with the help of Pagaya and Conis.

Davy Back Fight
Chopper and company come across a mysterious pirate ship after trying to escape a giant wave. Soon, they arrive on an island inhabited by strange animals. Going Merry is captured by the Foxy Pirates. After Tonjit re-unites with his horse, they are soon attacked by Captain Foxy and his subordinates, who challenge Luffy in a Davy Back Fight, a contest of pirates where the stakes are members of the crew.

The first round of Davy Back Fight involves a race around the island with tiny boats. In the anime, Chopper is teamed up with Zoro, and their boat has been eliminated immediately. With only Luffy, Nami, and Porche's boat remaining, it's an all out war to the goal, but after Foxy exposes his Devil Fruit powers, Porche wins and takes Tony Tony Chopper from Luffy.



When Foxy decides to take Chopper after the first round, the "Donut Race," Chopper cries, saying that he only went out to sea because he knew that his nakama will be the Straw Hats. Zoro lectures Chopper, telling him that he must be a man and that he is responsible for becoming a pirate.

The second round prepares to start. Without Chopper, Sanji and Zoro must face the Foxy Pirates in a ball game, but are hampered by their blatant cheating and the crooked referee. The bickering rivals Sanji and Zoro manage to overcome the opposing team by working together. Luffy takes Chopper back. (In the anime, Luffy chose Sherry instead of Chopper.)

Luffy and Foxy face off in the final game: a battle of brawn aboard Foxy's ship. The Straw Hat pirates watch from the side as Luffy continues to battle Foxy with the odds not in his favor, and the fight continues inside Foxy's ship. They haven't seen the battle when they fight inside the ship. Luffy manages to finally defeat Foxy by using his ability against him. After Foxy's defeat, the Straw Hats leave in search for a shipwright.

Water 7: A Breaking Ship, a Breaking Crew
After the Going Merry narrowly escapes being hit by a "sea train," the crew meets an old woman, Kokoro, and her granddaughter, Chimney. Kokoro gives Luffy a map to Water 7. Chopper loses Robin when she was gone shopping.



Chopper, along Luffy, Sanji and Zoro follows Usopp's bloody trail to the Franky House where they find him passed out in front. The four of them challenge the Franky Family only to find out that their real target, Franky himself, is gone and has taken the money with him.

After talks between Luffy and Usopp break down into a fight, ending with Usopp being greatly wounded by Luffy, Chopper attempts to go to his aid. Sanji attempts to stop him, though, saying that Usopp asked for the duel, and getting healed by Chopper would only bring him shame. Despite Sanji's request, Chopper went to Usopp, leaving behind medical supplies as he tearfully ran back to ship.



The Straw Hats get themselves a hotel room. An incredibly high tide called the "Aqua Laguna" is coming and Chopper and Sanji rush to warn Usopp. While the crew hide from angry residents, Sanji and Chopper discover Robin and she tells them what they've feared: she's responsible and she wants to part ways. Chopper reunites with the others without Sanji and they discuss what's happened. Luffy decides that in order to know the full truth, they must catch Robin.

The Straw Hat Pirates and Paulie break into the room where they find Iceburg and CP9. Luffy and the others request that Robin comes back to the crew. She refuses and tells them that she cannot accomplish her "wish" if she were to stay with them. Robin turns to leave and CP9 try to hold the pirates back. Robin successfully escapes and Lucci shows those remaining his "transformation." Lucci's transformation is a result of a Devil's Fruit; a Zoan Type leopard. He quickly disposes of the crew and CP9 tie up Paulie and Iceburg, leaving them alone as the building slowly burns down around them. Chopper escapes the burning building with Paulie and Iceburg on his back and collapses outside. Nami rushes to tell Chopper so they can go looking for the rest of the crew.



Chopper finds Zoro and hands him the Sandai Kitetsu so he can escape the chimney. Seeing how determined Luffy is to save Robin, Kokoro and Iceburg lends the Straw Hat crew the use of another sea train, Rocket Man. The Franky Family shows up, pleading with Luffy to let them join them because they'll do anything for their leader. The Rocket Man finally makes it out to sea.Paulie tells his fellow carpenters who the real culprits were. The Straw Hats, Franky Family, and Galley-La Company form an alliance.

They miraculously pass through unscathed Aqua Laguna and the passengers rejoice. Sanji contacts the rest of the crew and fills them in on his current situation. Back in the Rocket Man, Luffy, Zoro, Nami, and Chopper get an outfit change. Those on the Rocket Man encounter the discarded cars and Zoro slices them so they can pass. Zoro clashes with "Ship Cutter" T-Bone. The fight is short and Zoro joins the crew again in the Rocket Man.

Yokozuna the frog jumps onto the front of the train, knocking them from the rails. After Kokoro speaks with him, he joins the group. Luffy and the others finally catch up to Sanji, Usopp, and the rest of the Franky Family as they near Enies Lobby. Paulie sits down with the group and talks about their plan. Luffy doesn't bother to follow the plan, and slingshots himself beyond the gates before the train stops.

Rescuing a Nakama from Enies Lobby
As they proceed to the Enies Lobby, Chopper and crew manage to land on Oimo's back. They ride Sodom and Gommorah to reach the Courthouse. As they wait for the bridge to be activated, they lined up at the roof to convince Robin to accept their request saving her. When the bridge was not fully lowered, Kokoro helpped by using the Rocketman. The train used the half lowered bridge as a ramp. Luffy pushed them all down as he jumped onto it.



After they crash-landed, Fukuro appears and declare that a key is needed to uncuff Robin's cuff. The crew decided to individually search for and fight an agent, leaving Luffy to handle Lucci whom Fukuro said was taking Robin to the Gates of Justice. Later, searching for agent, he found Zoro and Sogeking being chased by Kaku and Jabra cuffed each other. He was sent to search for the number 2 key from the other agents.

He switched with Nami to fight Kumadori. As the second Rumble Ball doesn't work properly, he was beaten well. Desperate, he defeated Kumadori by eating a third one, losing his rationality and conscience in the process. He was shot by Franky's "Coup de Vent" which sent Chopper soaring sea in order to stop Chopper's violent rampaging.

He has been carried by Kokoro after he got saved by Franky. When he woke up, he and his crew mates had been saved by Kokoro from drowning, who is a mermaid. As his crew mates defended the escape ship, he couldn't move his body because of the side effect of the overuse of the rumble ball.



With the help of the Going Merry, everyone managed to escape Enies Lobby safely (while painfully pulling Zoro's legs to get him to apologize to Robin). However, after escaping, Iceburg arrives in a Galley-La just in time to pick up the Straw Hat Pirates as the Merry suddenly breaks apart. Luffy then gives the Going Merry a viking funeral by burning the ship as the crew tearfully says goodbye.

Chopper received his first bounty of 50, so low because he was perceived to be the "pet" of the Straw Hats. This possibly gives him the smallest active bounty of all time. Chopper is shocked and disappointed that his bounty is so small, since he believed he fought like a man.

When Garp attacks and Usopp tries to rejoin, Chopper was the only one who didn't deny his attention.

Adventure on Ghost Island
After sailing for some time on the Thousand Sunny, Chopper and the rest of the crew came across a mysterious barrel floating on the ocean. Upon opening it, a flash shot up from it. After braving a storm that mysteriously came afterwards thanks to Nami and Franky,Chopper and the rest of the crew found themselves in the presence of a ghost ship.

This ship apparently belonged to a skeleton named Brook who through by chance initially accepted Luffy's offer to join the crew. Chopper along with Usopp were exceptionally afraid of the skeleton. Just as Brook was about to perform before Usopp and the rest of the crew after dinner, a ghost appeared, and a clanking noise was heard. These sounds were caused by the gates of the island that suddenly appeared, Thriller Bark, closing. This prompted Brook to head to the island before Chopper and the rest of the Straw Hats' eyes.



With Luffy's resolve to go to the island, Chopper couldn't do anything about it. With Usopp and Nami, he set out in the new 'mini-merry' ship to explore Thriller Bark. There, the three met the Cerberus, which chased them until they hid in a tree. Here the three met Hildon who decided to take them to met Dr. Hogback. This pleased Chopper as the doctor was renowned in the medical world.

After riding a carriage with Hildon through some woods filled with all sorts of stitched-up creatures, Chopper and his companions were left in the middle of a cemetery. There, they were attacked by some Zombies,and escaped into Hogback's mansion and met with the good doctor and his maid, Cindry. Over dinner, Chopper asked for the doctor's autograph and a chance to visit his laboratory. The former request was given to Chopper but the latter was not.

After dinner with the good doctor in which the three asked about Brook, Nami decided to take a bath. For this, Chopper and Usopp were put in charge of guarding her from intruders from the outside. In the middle of the bath however, Nami was attacked by an invisible thing. Luckily, Usopp came in the bathroom and drove it away. Later after the incident in the bathroom, Chopper and his companions found out that the paintings and taxidermy in the dining room were all Zombies. Fortunately, the three escaped through a secret door before the Zombies could catch them.

Beyond the secret door, Chopper and his companions found themselves in a room filled with Cindry's pictures. Through a newspaper article that Nami found, the three learned that Cindry was an actress that died ten years ago. Just as they were about to leave, the three stumbled across a treasure chest. Inside however, was a horrific Jack in a box that frightened the three out of the room.

As the three were running through the hallways of the mansion from more painting Zombies, a mysterious bodyguard decided to chase them.

Eventually, Chopper along with Usopp and Nami hide inside the stuffed body of Kumashi to overhear Moriah's plan for creating Oars- the strongest zombie. Eventually the trio are discovered and make a run for it, but are surrounded and attacked by a large group of Zombies. During the battle, Nami is captured by Absalom. Franky and Robin arrive just in time to finish off the zombies. After that the crew makes its way back to the Thousand Sunny where they find Luffy, Zoro and Sanji. After explaining the situation to them, Luffy orders the Straw Hats to prepare for a counterattack on Thriller Bark.

With Robin, Chopper attacked Hogback in his laboratory, but found him protected by Jigoro, Inuppe, and Cindry. Chopper and Robin fight them, but are eventually forced into submission. Chopper announces his disgust and defiance by declaring Hogback is no longer a doctor to him. He explains that when Hogback told him he was using the zombies to investigate the difference between life and death, he admired him because he could help those who lost loved ones when death occurred, but when he found out his role in the zombies' resurrection, he was disgusted that he would go as far as to use them for personal benefit instead medical science, and is forcefully moving them despite their hearts not beating, making them puppets. This, Chopper explained is why he cannot accept the zombies as living creatures, and Hogback as a doctor.

Hogback laughed and insulted Chopper's ideals, declaring he brought new life to the zombies and they should be grateful for "reviving" them. He demonstrated their proof of being "alive" by kicking Victoria Cindry in the face and ordering her to lick the ground. He explained that the room that Chopper went into earlier was his room, and told him how he disappeared, and the truth behind Victoria Cindry and her death.

He explained that because of his medical genius, many flocked to him with the hopes he could help them or their loved ones. Eventually, he couldn't be bothered with, and explained it was only for the money. Then, a beautiful and famous entertainer named Victoria Cindry became one of Hogback's patients. Hogback, like many other men, was smitten by her beauty and fell in love with her, but she told him she was already engaged. However, it was nothing compared to his eventual heartbreak when he found out Cindry lost her life when she fell from a stage. A depressed Hogback left his job and disappeared from public knowledge, but was discovered by Gekko Moriah and became in his servitude in the promise that Cindry be brought to life.

Eventually, he stole Cindry's corpse and with medical surgery and Geko Moriah's Kage Kage no Mi ability, Cindry was brought back to life as a Zombie. Hogback declared although Cindry had a different personality, he cared only for her beauty and said she is and should be thankful for her resurrection, and thus ordered her to attack Chopper.

While Chopper refused to attack her, and merely restraining her, as she continued to assault him. Chopper pleaded to Cindry to stop and look at what she's become. While she calms down, Chopper asks to Robin to use her powers and feed her salt. However, she was prevented from doing so by Jigoro and Inuppe under Hogback's orders. Later, it soon became apparent that the two zombies couldn't get along and began to fight each other, just like Zoro and Sanji so Robin took advantage of Hogback's orders by forcefully closing his mouth, asking him to order herself and Chopper to "jump off the tower." When Robin released Hogback, he indeed did give this order, but it was mistakenly given to Jigoro and Inuppe and they followed suit.

Chopper decided to pummel Hogback, as the mad scientist desperately gave orders to Cindry to buy her time, but she miraculously started crying, and said she couldn't move. Just as the battle is turning in the Straw Hats' favor, with Chopper with Robin's help about to deliver the final move on Hogback, Oars however, demolished the wall and interrupts the fight. As Hogback pleads for Cindry's help, she simply smiles, implying her soul temporarily returned to her, and leaves him and herself to their fate. Oars' rampage apparently leads him to crush both Hogback and Cindry.

Chopper joined the crew's battle against Oars, and although the battle was completely drastic, it became increasingly desperate when Gekko Moriah used his Kage Kage no Mi ability to manipulate Oars' body, giving him an ability to stretch like his counterpart, Luffy. Despite to Oars' immunity to pain, Chopper discover that his weak spot is his right arm. It was discovered that Oars suffered a severe case of frostbite, due to wandering the Frozen Continent with very little on.



Chopper, Sanji and Zoro made continued attacks towards Oars' right arm, taking advantage of Oars' inability to feel pain, and giving his right arm considerable damage (though not initially noticed by Oars), however Chopper along with Sanji was knocked out for these efforts. With the Straw Hats falling one by one, Luffy returns to save Nami and Usopp and with 100 shadows in him, Luffy strength multiplied several times over becoming "Nightmare Luffy" and proceeded to pummeling the zombie giant, beating him severely, with Moriah himself caught in the attack, before powering down.

Down, but far from out, Oars gets up to do battle again. Fortunately, Nightmare Luffy's attack was more than enough time for the Straw Hats to recover. Luffy himself surprisingly gets up despite having the exhausting process of 100 shadows in his body for ten minutes. Chopper concocts a plan to force Oars' back straightened to take the full force of Luffy's attack. With his arm broken, Oars can't counter as Luffy activates Gear Third smashing a Gomu Gomu no Gigant Bazooka to his face, breaking Oars' back.

However, Moriah returns to consciousness, and uses his ultimate technique Shadows Asgard, taking all shadows in Thriller Bark, numbering to 1000 to finish off the Straw Hats once and for all. However, as Chopper witnessed, Luffy activated both Gear Second and Gear Third at the same time, and finally defeated Gekko Moriah, releasing all the shadows. Nami then remembers Kuma is on this island and tells everyone.

Meanwhile, Kuma reports that Moriah has failed to kill Luffy and is badly wounded, he is ordered to kill everyone on Thriller Bark and evacuate the wounded Moriah. However, instead of outright killing everyone as his orders said he offers everyone a deal- let him kill Luffy (who cannot fight back now) and he'll leave everyone alone. The Straw Hats and everyone else on the island tell Kuma no way and he sets off a bomb made out of air that knocks everybody unconscious.

However, before he can finish off Luffy, Zoro rises again and vows he won't let Kuma touch him, Kuma offers to just kill Zoro then and attacks him, though Zoro survives. Zoro offers his head for Luffy's and Kuma decides to torture Zoro by giving Zoro all the pain and suffering Luffy had endured. Kuma then leaves, praising Luffy for having such good friends.

Soon after, Chopper joins everyone in a celebratory party at Thriller Bark (save for Zoro, who is still recovering from his wounds) lead by Brook and his piano. Luffy finally reveals to Brook that he is friends with his nakama, Laboon. Brook stops partying, cries, and reveals a Tone Dial which has the last song the Rumba Pirates ever performed together on it. Brook states that since he has new friends in Luffy and the others, he no longer needs the Dial and will give it to Laboon the next time they meet. Brook then asks if the Straw Hat crew invite is still good and Luffy says it is, Chopper joins the others in a shocked response.

Once he and the rest of the crew finally left Thriller Bark, they held a toast to Brook, their new nakama.

An Incident at Sabaody Archipelago and Destruction of the Straw Hat Crew
After leaving Thriller Bark, Chopper assisted the other Straw Hats on their continued journey. He helped fight the Flying Fish Riders alongside the crew.

Afterwards, he arrived in the Sabaody Archipelago, where he joined in the initial group heading out on the island. He was treated to cotton candy by barmaid Shakuyaku and eventually dozed off alongside Brook after trying and failing to find the assisting Keimi. Usopp later found him and Brook and was berated for relaxing instead of looking for Keimi, and they were quickly taken aboard a Flying Fish with the Rosy Life Riders.

After they enter there, Keimi had already been sold to Tenryubito Saint Charloss in an extravagant bid of 500,000,000. However, Luffy's Flying Fish burst in, and he quickly got off to rescue Keimi. In former enemy Hatchan's attempt to restrain him, he inadvertently revealed he is a fishman and is shot by Carlos Sei. An enraged Luffy responded by punching him in the face, and starting an incident attracting several Marines to the Human Auctioning House. Luffy, along with the crews of two of the Eleven Supernovas, Eustass Kid and Trafalgar Law cleared the incoming masses of Marines, Chopper assisted them in battle, until he as well as the rest of the Straw Hats with the help of Duval's Rosy Life Riders, managed to escape.



Chopper heard Rayleigh's story with the others, but shortly after leaving, he and the others were confronted by a Pacifista. Chopper's Roseo Meitel attack did very little damage to the weapon's defenses, but the group managed to defeat it by combining their efforts. Unfortunately, they were soon confronted by a second Pacifista and Sentomaru, Dr. Vegapunk's bodyguard. Luffy ordered the crew to split up, and Chopper went with Luffy and Robin. Sentomaru intercepted Luffy and managed to wound him with unarmed attacks despite his rubber body.

Seeing his companions defeated, Chopper became desperate and used three Rumble Balls at once, although he had already used one against the marines outside the Human Auctioning House and another against the Pacifista, it transformed him into Monster Chopper. Monster Chopper then began attacking Sentomaru as Robin fled with Luffy. He turns his attention to Kuma who just appears and is vanished as a result.

Straw Hat Separation Adventure: Torino Kingdom
Chopper lands in the Torino Kingdom, in the South Blue, where the natives want to cook him. As seen in the Straw Hat separation serial, Chopper is running for his life to avoid getting eaten. At some point, he managed to hide while the natives were fighting the giant birds on the island.

After some time on the island, Chopper manages to stop the war between the humans and birds, using his ability to talk to animals to translate for the natives. Afterwards, he leaves the island worried and wanting to heal Luffy's wounds after learning of his involvement in the war and Ace's death. He flies off the island on one of the birds, though at the same time a News Ku passes by, and after reading the paper Chopper is shocked by a recent article involving Luffy.



He states he understands why Luffy is praying at Marineford, and afterwards, he returns to the Torino Kingdom to become stronger. Since Chopper is uncomfortable with returning to the island sooner than expected, he wears a disguise called "Chopper Mask". However, the natives instantly recognize Chopper and the reindeer then threw away the disguise.

Chopper says that he wants to study the plants on the island and a native takes him to the village library where he can do his research. Chopper then comments that the natives are not as primitive as he originally thought as he recalls them using mechanical weapons. Chopper then thinks back to his early days, where he was called a monster and shunned by everyone. He realizes that ever since he joined Luffy's crew, it didn't matter what other people called him, and he promised to help Luffy no matter what.