How Luffy Invented Gear 4: the 2-Year Ruskaina Training Secrets
By David Miller
As Luffy encountered varied threats across the New World, the standard Boundman form proved suboptimal against specialized fighting styles. Below is a breakdown of how Gear 4 evolved across major narrative encounters:
| Gear 4 Variant | First Appearance (Manga / Anime) | Mechanical Focus | Key Battle Showcase |
|---|---|---|---|
| Boundman (Bounce-Man) | Chapter 784 / Episode 726 | Balanced mass expansion, brute force, concussive flight propulsion. | Donquixote Doflamingo (Dressrosa) |
| Tankman (Full Version) | Chapter 842 / Episode 806 | Maximum torso bulk, extreme kinetic absorption, counter-compression launcher. | Charlotte Cracker (Whole Cake Island) |
| Snakeman | Chapter 895 / Episode 870 | Slender frame, unpredictable directional vector shifts, progressive acceleration. | Charlotte Katakuri (Mirro-World) |
Each variation trades one physical attribute for another. Boundman splits the difference between speed and blunt force. Tankman abandons mobility entirely, relying on swallowed caloric mass to create an impenetrable cushion that defeated Sweet Commander Cracker through pure counter-recoil. Snakeman strips away defensive bulk to match opponents who rely on advanced Observation Haki.
David Miller brings 15 years of experience in global economics, personal finance strategy, and market dynamics. He specializes in turning complex economic trends into actionable insights for everyday readers.
