
Ultimate Hellfire Burst Wave Motion Cannon is the 154th online chapter of One-Punch Man, part of the Monster Association Arc. Garou tears through Fuhrer Ugly, Platinum Sperm, and Evil Natural Water in an instant, and a wormhole delivers Saitama to the surface.
Child Emperor and Atomic Samurai puzzle over why King has not fired his Ultimate Hellfire Burst Wave Motion Cannon, while Puri-Puri Prisoner and Iaian keep watch on Platinum Sperm. Child Emperor decides King must be letting his enemy reach peak form first so that crushing it will terrify the monsters into submission. King finally unfolds his arms, and the cheering heroes assume an attack is coming, but he is really just trying to bow. Platinum Sperm lashes out with the tentacle on his head, downing several heroes around King, then tells the horrified hero that he knows King wants a fair one-on-one at full strength and challenges him to loose his ultimate move so he can behead him at the same instant.
Fuhrer Ugly looms over the fallen Bang, wondering aloud if Garou is the one who beat him. The skin around his left eye shattered, Garou roars and charges, driving a kick clean through the monster's body just as it moves to finish Bang. As King shuts his eyes and shouts his attack's name to intimidate his foes, Garou blurs to Platinum Sperm and launches him away with one punch. Evil Natural Water senses his hostility and fires two jets, which Garou deflects before answering with a rapid barrage. Everything happens in under a second, too fast for King to even notice him. Watching from afar, Metal Bat is thrilled, convinced King has slain the monsters, while King reels in confusion. Fuhrer Ugly, stunned by his lethal wounds, collapses and melts away.
Garou stands murmuring about Bang when he spots a black wormhole nearby. It opens to reveal Saitama, Flashy Flash, and Manako, all startled to find themselves teleported up to the surface by Blast.
King, terrified, prepares to bow rather than attack, and Platinum Sperm incapacitates the heroes around him. Garou kills Fuhrer Ugly with a body-piercing kick, knocks Platinum Sperm flying with one punch, and scatters Evil Natural Water, all faster than King can perceive. Fuhrer Ugly melts away in death. A wormhole opened by Blast returns Saitama, Flashy Flash, and Manako to the surface.

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Despite being titled after King's signature attack, Chapter 154 (Online) does not actually show him firing the Ultimate Hellfire Burst Wave Motion Cannon. He only raises his arms to bow while Garou secretly defeats the monsters around him.
Garou tears through Fuhrer Ugly, Platinum Sperm, and Evil Natural Water in an instant while King is credited for it by mistake, and a wormhole delivers Saitama back to the surface.
Garou roars and charges as Fuhrer Ugly looms over the fallen Bang, driving a kick clean through the monster's body just as it moves to finish Bang off, killing it instantly.
Metal Bat, watching from afar, is thrilled and convinced King has slain the monsters, since Garou moved so fast that King himself never noticed him and only reels in confusion.
Saitama, Flashy Flash, and Manako emerge from a black wormhole, all startled to find themselves teleported to the surface by Blast.
Looking for more on Chapter 154 (Online): Ultimate Hellfire Burst Wave Motion Cannon? The One-Punch Man Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the One-Punch Man anime series, manga, and official materials. One-Punch Man was created by ONE and Yusuke Murata, published by Shueisha, and animated by J.C.Staff and Madhouse. All rights to One-Punch Man and its characters belong to their respective owners. Episode and chapter references are cited where applicable.
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