CHOOPER - ONE PIECE
Basic information
Name: Tony Tony Chopper
Birthdays: 24/12
Title: Doctor in the Straw Hat Pirates
Dream: Become the best doctor.
Bounty: 50 bale
Devil Fruit: Hito hito no mi
Meaning: People
Type: Zoan
Tony Tony Chopper is a doctor of the straw hat pirates. He was a reindeer who ate Hito no Mi (hito: man) and came from Drum Island, which made him the only member of the Grand Line. He is the 6th member of the group.
Chopper is very lucky to eat evil fruit because he is an animal. Your evil fruit is different from other fruits of the same system. While the Zoan family contains the power of an animal, the Hito has the power of humanity. Chopper ate it so he was almost human.
This evil ability gives the person power, but it also gives him the intelligence and the ability to talk like a human
Chopper usually in the form of hybrid reindeer (or reindeer hybrid)
This Zoan allows him to turn into three types of fighter jets, but with his medical prowess, he has made Rumble Ball so he has some other types of combat.
Rumble Ball gives you 5 more fighting styles and lasts only 3 minutes
Use the Rumble Ball 1: fight strongly
Use the Rumble Ball 2: fighting ability is difficult to control when the transformation
Use Rumble Ball 3 times: You will turn into a giant monster. This is a very horrible tactic. It makes Chopper a true monster and he can not control it completely. It is very dangerous because when used will cause Chopper to lose all reason and only kill enemies and nakama because he can not distinguish who.

Thanks for the post! After the timeskip, Chopper is now able to control himself with self-conscious even in rumble ball 3 transformation.Though there is still a time limit.