One Piece's Tony Tony Chopper is a reindeer, and the Straw Hat Pirates' doctor. With the powers of the Zoan-type Hito Hito no Mi, Chopper gained the powers of a human and several other hybrid forms as well. Being one of Luffy's crewmates, Chopper is just as essential for the crew on their journey to Laugh Tale as anybody.
Throughout his life as a doctor and a pirate, Chopper has accomplished quite a lot and even done things that the most renowned doctors of the world can't even dare to achieve.
10 Chopper Studied Medicine Under Kureha's Guidance
Given that Chopper is a reindeer with the qualities of a human, thanks to his Devil Fruit, it is certainly quite an achievement for him to study medicine and become an accomplished doctor.
In fact, his skills as a doctor far surpassed the likes of the Isshi-20 when he was on Drum Island. After Kureha, Chopper was the greatest doctor on the island and he has only grown in terms of skill ever since.
9 Chopper Saved Countless Lives On Drum Island
Chopper was one of the greatest doctors on Drum Island, if not the greatest. For him, saving the lives of those around him was paramount.
Along with Kureha, Chopper came down from Drum Castle often and helped all those who needed it. Throughout his time under Kureha, he managed to save countless lives—quite an achievement.
8 Chopper Created The Drug Called Rumble Ball
Chopper didn't just save lives when on Drum Island. He also dedicated his time to studying various drugs and ended up creating one called Rumble Ball. Using this drug, Chopper could control his Zoan transformations, and instead of just one hybrid form, he gained seven total transformations.
With each form, known as a "point," Chopper gains a different ability. Creating such a drug is quite a difficult job, yet Chopper managed to do it without much trouble.
7 Chopper Defeated Ms. Merry Christmas & Mr. 4 In Alabasta
Aside from being a doctor, Chopper is also a skilled fighter and he's proved this on countless occasions. His bounty might be very low but the figure isn't a true reflection of how skilled he truly is.
During One Piece's Alabasta arc, Chopper fought against Mr. 4 and Miss Merry Christmas along with Usopp and managed to defeat them. He is quite versatile and has the perfect combination of strength and brains to overcome his enemies.
6 Chopper Unlocked Monster Point During The Enies Lobby Arc
One Piece's Enies Lobby arc saw Chopper tap into his greatest power, called Monster Point. This form is also a part of the Rumble Ball transformations that he created; however, he couldn't control it before the time skip. Nonetheless, its powers were tremendous and allowed Chopper to defeat Kumadori with a single blow.
Chopper was one of the strongest characters in the Enies Lobby arc, without a doubt. After the time skip, Chopper has gained complete control over his Monster Point transformation.
5 Chopper Figured Out Oars' Weakness & Cause of Death
Thriller Bark arc saw the Straw Hat Pirates do something different from the regular and combine their power to take on Oars, the Ancient Giant known as the Continent Puller. Oars was reanimated by Gecko Moria using the powers of his Kage Kage no Mi and was thus a Zombie.
Thanks to Chopper's knowledge, the Straw Hat Pirates were able to figure out his cause of death and consequently his weakness as well. Using that to their advantage, they overcame Oars.
4 Chopper Studied Plants On Torino Kingdom
During the two-year time skip, Chopper lived on Torino Island in the South Blue. Although he assumed that the people there were primitives initially, his view changed quickly and he immediately realized that they had some of the most useful plants there.
Studying in their library, Chopper learned about various herbs and gained incredible medical knowledge which only made him a better doctor. After the time skip, Chopper is arguably the greatest doctor in the story.
3 Chopper Has Saved His Crew On Several Occasions
Using his skills as a doctor, Chopper has saved many lives, including those of his crewmates. Ever since he became a member of the Straw Hat Pirates, Chopper has saved every single member of the group on more than one occasion.
After Thriller Bark, Chopper ensured that Zoro survived his injuries. He also saved Luffy following his fights against the likes of Crocodile, Hody, Katakuri, among many others. Without Chopper, several crew members could potentially have died already.
2 Chopper Managed To Increase Monster Point's Duration
Until recently, Chopper was only able to use the Monster Point for three minutes. Most of the time, this proved long enough for him to defeat his enemies, however, after the time skip, this certainly isn't enough.
Thanks to help from Caesar, Chopper managed to increase the duration of his Monster Point form from 3 to 30 minutes, which is a staggering 10x boost. The consequences of this form are just as bad, making it a double-edged sword.
1 Chopper Came Up With A Counter Against Ice Oni
On Onigashima, Chopper got to show his skills to fans once again when Queen used the Ice Oni virus to turn everyone into ice demons. Thanks to Miyagi and Tristan, Chopper was able to find a counter for the Ice Oni within a matter of minutes.
This is, undoubtedly, one of Chopper's greatest accomplishments given that Queen is someone who worked with the likes of Vegapunk and Judge in the past. Chopper also found a cure for his Mummy virus in Udon Prison.