Buki Buki no Mi

A Paramecia-type Devil Fruit, this power lets its owner remake any part of themselves into a weapon of any kind, making them a Full-Body Weapon Human. The eater is Baby 5 of the Donquixote Pirates. In Japanese buki means "weapon," while VIZ and Funimation title it the Arms-Arms Fruit, with "arms" taken from "armaments."

Whoever eats this fruit gains the power to convert their flesh into any weapon imaginable. The change can be small, affecting only fingers, hands, or arms, or sweeping, remaking an entire torso or the whole body into an armament, which makes carrying outside weapons pointless. While she exists as a weapon, the user absorbs no harm from that weapon's effect, so detonating as an explosive leaves her unhurt, and if her body is blown apart the fragments knit back together undamaged in a Logia-like fashion. That regeneration does not extend to her human form, however, even when only part of her is transformed. Turning into self-detonating arms such as missiles and bombs spares her, yet she stays vulnerable to any weapon she points at herself, whether by choice or not. The standard Devil Fruit weaknesses apply on top of that.

Baby 5, serving as her crew's assassin, uses the power for killing and combat at every range. She can morph a small piece, turning a finger into a gun, or go all in, becoming a sword across half her body or a rocket with her whole frame, though she most often converts her arms and sometimes legs into blades or firearms to back up close fighting. Paired with Buffalo and his Guru Guru no Mi spinning, her weapons pick up extra momentum and reach. Her Buki-morphose technique reshapes part of her body into a chosen weapon, and its named forms include Espada Girl, a giant sword with her legs as the handle; Missile Girl, a self-guided missile Buffalo launches; Revolver Girl, a rapid-firing barrel; Sickle Girl, a kusarigama built from her arms and legs; along with Revolver Leg and the anime-only Gatling Girl, Flying Disk Girl, and Fire Girl. She ate the fruit at least thirteen years ago, wielding it against Wellington when she was eleven. Despite never needing outside weapons, she buys them anyway out of a personality flaw, something Buffalo scolded her for.