Tony Tony Chopper ( トニートニー・チョッパー , Tonī Tonī Choppā ) is a doctor and a blue-nosed reindeer . The power of the Zoan -type Human-Human Fruit ( ヒトヒトの実 , Hito Hito no Mi ) provides him with the ability to transform into a reindeer or a reindeer hybrid. [ ch. 140 ] A self-developed drug he calls Rumble Ball ( ランブル・ボール , Ranburu Bōru ) enables him to perform even more transformations. [ ch. 149 ] When complimented, Chopper acts really sad and sometimes yells at the animal who complimented him to stop trying to make him happy. [ ch. 140 ]
One of the Colosseum staff was about to disqualify Luffy, but the Chinjao Family stepped in and spoke on Luffy's behalf, saying that Spartan was the one who started the fight. After thanking the Chinjao Family for saving him from disqualification, Luffy learned that he has been assigned to Block C. Once he went to the battle preparation room, Luffy got very excited seeing all the armor and decided to put some on to make himself look cooler. While learning about the Colosseum's weight restriction on protective gear, Luffy was greeted by Cavendish , captain of the Beautiful Pirates .