During his battle with [[Charlotte Katakuri|Katakuri]], Luffy revealed another form of [[gear fourth|Gear 4]] known as Snakeman Unlike his other two [[gear fourth|Gear 4]] forms, Luffy does not significantly expand, with his forearms, legs, and upper torso being only slightly enlarged and the rest of his body retaining its normal proportions. The spread of [[Haki]] is slightly more limited, as it does not appear to extend onto Luffy's shoulders and upper body. However, Luffy's hair becomes flame-shaped like his [[Haki]] and sticks up. Instead of steam, this form produces a gaseous substance appearing as a mix of steam and fire and like its other counterparts also seems to be draped over his shoulders like a scarf while in this form. His fists also flex differently, with the first knuckles being extended, similar to leopard fist.
gear fourth: snakeman