The 42nd One Piece episode pits Luffy against Arlong's full fish-man arsenal. The sawtooth pirate cycles through regrowing teeth, a piercing charge, and his massive saw-blade weapon as the rubber captain hunts for an opening inside Arlong Park.
Arlong opens his onslaught by chomping clean through a stone pillar and grinding Luffy's borrowed swords to scrap. Leaning on his crew for support, Luffy drives a fist into Arlong's jaw and shatters his teeth, only for the fish-man to grow a fresh, fiercer set and wield the discarded ones as handheld blades. Never one to waste an advantage, Luffy snatches a loose set of teeth and clamps them in his own mouth to fight back, matching his opponent fang for fang inside the park.
For his next gambit Arlong submerges and rockets upward as a living harpoon, aiming to skewer Luffy with his pointed nose in the move Shark on Darts. Though he launches the strike again and again, Luffy halts each charge mid-flight by catching him with his elastic hands. Pushed into a fury, Arlong taps a rage similar to that of the Sea Kings and enters a heightened, more savage state, hauling out his signature zanbato, the saw-edged Kiribachi lined with tooth-like blades.

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With the Kiribachi in hand, Arlong batters Luffy through a wall and deep into the compound. Crashing inside, Luffy stumbles upon the cartography room where Nami once drew her sea charts, and the discovery cements his resolve, declaring on the spot that Nami will be his crew's navigator. The episode debuts several techniques, including Arlong's Tooth Gum and Shark on Darts alongside Luffy's Gomu Gomu no Tate and Gomu Gomu no Ami. Production notes recall that 4Kids spliced parts of this episode with neighboring ones to assemble their own broadcast edit.
Arlong is a sawtooth fish-man, a trait reflected in Episode 42 by his rows of regrowing teeth and his saw-edged weapon, the Kiribachi. He wields these features throughout his fight against Luffy at Arlong Park.
After Arlong grinds Luffy's borrowed swords to scrap, Luffy punches Arlong's jaw hard enough to shatter his teeth. When Arlong grows a fresh set and wields the old teeth as blades, Luffy grabs a loose set himself and fights fang for fang.
Shark on Darts is Arlong's technique of submerging and rocketing upward like a living harpoon, aiming to skewer Luffy with his pointed nose. Luffy halts each repeated charge by catching Arlong mid-flight with his elastic hands.
Luffy stumbles upon the cartography room inside Arlong Park where Nami once drew her sea charts. The discovery cements his resolve, and he declares on the spot that Nami will be his crew's navigator.
Episode 42 debuts Arlong's Tooth Gum and Shark on Darts, along with Luffy's Gomu Gomu no Tate and Gomu Gomu no Ami. It also marks the point where 4Kids spliced footage with neighboring episodes for its broadcast edit.
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View on FandomThis content is original writing by Daddy Jim Headquarters based on the One Piece anime series, manga, and official materials. Episode and chapter references are cited where applicable.
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