Tony Tony Chopper

Tony Tony Chopper, also known as the "Cotton Candy Lover," serves as the Straw Hat Pirates' doctor and holds a position as one of the Senior Officers in the Straw Hat Grand Fleet. He is the sixth member to join the crew, doing so at the conclusion of the Drum Island Arc. While he was briefly coerced into the Foxy Pirates during the Long Ring Long Land Arc, he swiftly returned to Luffy's crew. Chopper, originally a reindeer, gained the ability to transform into a human hybrid at will by consuming the Hito Hito no Mi, a Devil Fruit. His medical knowledge was imparted by his parental figures, Doctors Hiriluk and Kureha, during his time on Drum Island. Chopper aspires to voyage across the world, seeking to achieve his dream of healing any ailment.

His initial bounty of 50 Beli arose due to an Enies Lobby incident where he was mistaken for the Straw Hats' pet. Following the Dressrosa Arc, it increased to 100 Beli, subsequently reaching 1,000  Beli after the Raid on Onigashima. During the Wano Country Arc, he donned a green ninja outfit, and prior to the raid on Onigashima, he wore a dark bluish-green samurai armor complete with a Kabuto helmet and a Katana. His attire changed to a red-colored samurai armor with a matching red Kabuto helmet during the Raid on Onigashima. While under the influence of the Ice Oni virus, Chopper's body and armor partially froze, resulting in a slightly more sinister appearance with partial fangs. His appearance reverted to normal after administering the countervirus.

During the Egghead Arc, Chopper wore a hooded long coat featuring the SSG logo on the front, along with a space helmet-like hat with a visor, goggles, an earpiece, and DOM Shoes. Given his animal origins, Chopper possesses the unique ability to comprehend and communicate with other animals, making him an invaluable translator bridging the gap between creatures and humans. This talent first surfaced when he translated Karoo's account of how he ended up frozen near the Going Merry in Drum Island's icy waters.

Under the tutelage of Dr. Kureha, a prominent medical practitioner in the advanced Drum Kingdom, Chopper has acquired exceptional expertise in medicine, including knowledge of medicinal drugs and the formulation of remedies and ointments from natural sources like fruits, herbs, roots, and vegetables commonly found on various islands. His surgical and resuscitation skills are top-notch, enabling him to treat even the most severe injuries with great precision. Chopper's acquisition of the Hito Hito no Mi, a Zoan-type Devil Fruit, grants him the ability to switch between his reindeer and human-reindeer hybrid forms at will. This transformation endows him with human-level intelligence, human language proficiency, the capacity to walk on two legs, and the ability to manipulate objects with his cloven hoof hands. His full human form, while quite robust and powerful, appears more akin to an apeman, making his hybrid form his preferred state for interaction with humans.

In combat, Chopper's full human form exhibits considerable strength and bulk, enabling him to execute melee techniques that are unavailable to him in his true reindeer form, including punches and kicks. His comprehensive knowledge of bipedal anatomy proved invaluable when strategizing to confront the colossal Oars. Despite his innocence, Chopper's combat prowess shines through in battles against adversaries like the Mr. 4 and Miss Merry Christmas duo and Gedatsu. Additionally, he possesses some carpentry skills, as evidenced by his involvement in repairing the Thousand Sunny after its escape from Totto Land in the absence of Franky.