The Dominator of the Universe

Aboard the vessel, Geryuganshoop laments Groribas' defeat, noting that only he and Melzargard remain among the elite. Boros brushes off the ship's damage, trusting the protective sphere around them. On the ground, the heroes keep failing to put Melzargard down, since he simply reforms after every hit. When he sends a detached head to call for a bombardment, Metal Bat swats it away, and the combined assault of Atomic Samurai, Puri-Puri Prisoner, Bang, and Metal Bat continues. The breakthrough comes when Metal Bat spots a marble hidden inside the monster and crushes it, permanently removing that portion of him. Meanwhile Geryuganshoop tries to steer Saitama out of the ship, but Saitama pushes toward the control room instead, finds the telepath, and ends him with a flicked pebble.

As the Dark Matter Gunner readies a bombardment and Child Emperor and Genos assess the ground situation, the heroes keep destroying Melzargard's remaining heads. When the shells finally fire, Tatsumaki halts them in midair and hurls them back at the ship at full force, and Stinger and Lightning Max arrive to help. Bang smashes another marble but takes a brutal hit from Melzargard, leaving him unconscious against a building. Deep inside, Saitama reaches Boros, who scans him and declares him Earth's strongest warrior with limitless energy. Boros shares the prophecy of an Alien Seer that drew the Dominator of the Universe to the planet, and an irritated Saitama strikes him. Boros survives the blow, his restraining armor cracking apart to unleash his true form.

The heroes discover Melzargard's marble weak points and begin dismantling him for good, while Saitama kills Geryuganshoop and reaches the throne room. Tatsumaki turns the ship's own bombardment against it, and Boros survives Saitama's punch, shedding his armor to reveal his real power.

The news broadcast, Geryuganshoop's gravity attack, and Child Emperor's warning about the ship's rising energy are all anime-original additions, as are Stinger and Lightning Max, who did not appear in this arc in the manga. In the source, Saitama broke straight into the throne room where Geryuganshoop stood, whereas the anime splits the two encounters, and Boros' armor shatters here rather than crumbling away as it does in print.