Monkey D. Luffy (Gear 4th), Battle Wikia

Gear 4th (or Gear Fourth) is a technique used by Monkey D. Luffy in order to inflate his muscular structure into warped proportions.

Monkey D. Luffy (Post-Timeskip), VS Battles Wiki

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Monkey D. Luffy (Post-Timeskip), VS Battles Wiki

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Monkey D. Luffy (Post-Timeskip), VS Battles Wiki

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Monkey D. Luffy (Post-Timeskip), All Fiction Battles Wiki

Monkey D. Luffy (Pre-Timeskip), All Fiction Battles Wiki

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