Size: 11cm. Recommended age: 15+ years old. Chopper is a reindeer who ate the Devil Fruit Hito Hito no Mi, which gave him the ability to transform into human and other hybrid forms. He grew up on an island called Drum Island, where he was shunned for his appearance. His mentor, Dr. Hiriluk, inspired him to become a doctor. After Hiriluks death, Chopper continued his masters dream and trained under the wing of Dr. Kureha.