“I’ll be king... I’ve still got my Haki! Gear Fourth!” – Monkey D. Luffy
The Boundman and the King: Analyzing the Evolution of Luffy’s Fourth Gear
The primary manifestation of Fourth Gear is "Boundman" (Bounce Man). Visually, the transformation is jarring; Luffy’s torso swells, his limbs become disproportionately large, and his eyes take on a predatory glint. The form fundamentally changes Luffy’s combat style. In his base form, Luffy is a brawler; in Fourth Gear, he becomes a bombardier. The constant bouncing makes him incredibly difficult to grapple, and his ability to change direction mid-air—using a technique akin to Geppo (Moon Walk)—grants him temporary flight. luffy 4th gear
Introduced during his fight against Charlotte Cracker in Whole Cake Island, Tankman is a reactive form that leverages extreme muscle mass.
This article dives into the mechanics of Gear 4th, its distinct forms—Boundman, Tankman, and Snakeman—and the strategic impact it has on the battlefield. The Mechanics of Gear 4th: "Muscle Balloon" “I’ll be king
Luffy 4th Gear: The Explosive Power-Up that Changed One Piece Forever
As Luffy’s journey continued, he demonstrated that Fourth Gear is not a single state but a versatile framework. During his battle with Charlotte Cracker on Whole Cake Island, he revealed "Tankman" (Full Version). By consuming an enormous amount of biscuits, Luffy expanded his size to grotesque proportions. This form prioritized defense over mobility; when Cracker attacked, Luffy’s Haki-coated belly absorbed the impact and used the enemy's own force against them, trapping them in a rubbery prison before launching a devastating counterattack. Luffy The Boundman and the King: Analyzing the
Unlike previous gears that focused on blood flow (Gear 2) or bone inflation (Gear 3), Gear 4 targets the . By inflating his muscles and coating them in massive amounts of Armament Haki , Luffy achieves a state where he is both "hard" and "rubbery" at the same time, allowing him to bounce off the ground or retract his limbs like high-pressure springs. The Major Forms
Luffy has developed several specialized forms within the Gear 4th transformation to counter different opponents, each emphasizing different aspects of physical combat. 1. Boundman (Bounceman) - The Offensive Powerhouse
Boundman allows Luffy to use Rokushiki techniques , specifically flying by kicking the air. His signature moves involve pulling his limbs into his body and launching them with explosive recoil (e.g., Gomu Gomu no Kong Gun). Key Fight: Doflamingo (Dressrosa). 2. Tankman (Full Version) - The Ultimate Defense