Table of Contents
1. BOROS
Boros was the character in One-Punch Man who came closest to giving Saitama a fight worth fighting for. This extraterrestrial claimed to be the strongest in the cosmos, and he was on the lookout for formidable foes. During their combat, Boros launched Saitama to the moon with one of his attacks.
He is also the only being who has ever faced Saitama and survived many punches from the cape-wearing hero.
Saitama fired a barrage of punches into the alien, shattering it into several pieces.
Boros restored his body with the last of his might and fired his ultimate attack on Saitama. Saitama replied with a “Serious Punch,” destroying the most formidable foe he had yet encountered. Even after defeat, Boros had enough strength to have a brief conversation with Saitama. Boros, like Saitama, was a superb warrior who had no equals. A seer informed him twenty years before he arrived on Earth that he would meet a warrior who could fight him toe-to-toe one day.
Boros searched the Universe for this famous duel, desiring nothing more than a good challenge. He was the head of the dark-matter robbers that invaded A-city and destroyed 99 percent of it in a bombardment that led to Saitama’s Spaceship.
2. GAROU
Garou is one of the most intriguing villains in the franchise. He is also known as the hero hunter/human monster, and he despises heroes in particular. He’s always been fascinated with monsters, and he’s always thought it was a shame that they constantly lost to the more popular heroes since he was a child. He was a former star pupil of the super-strong hero Bang, but he was expelled after he went on a rampage.
3. PSYKOS
The powerful esper Psykos is one of the two leaders of the monster organization, having first appeared as her meat puppet Gyoro Gyoro. She manipulates and plans for the monster organization with Monster King Orochi’s help.
She possesses a one-of-a-kind ability to cause humans to grow into very powerful monsters by stimulating their growth. Orochi’s power is due to Psykos. Her telekinesis is extremely strong, and she is extremely intelligent.
She is continuously putting the members of the association’s abilities to the test by placing them in dangerous situations in order to obtain information. After nearly annihilating Orochi, Saitama absorbed Psykos in an attempt to regain his vigor.
Psykos, on the other hand, are able to resist and regain control of their combined body. The Psykos-Orochi combo gains even more strength from an entity known as God. Psykos possessed extraordinary psychic talents even before the fusion.
She gains a strong physical body and enhanced psychic abilities after fusing with Orochi. Tornado, the number two hero in One-Punch Man, may be severely damaged by Psykos. She also fought off multiple attacks from Class-S heroes at the same time. Her constant tugging of threads throughout the monster alliance gives her the appearance of a behind-the-scenes mastermind.
She possesses a range of abilities, including the capacity to manipulate gravity and use it in a variety of ways. She also has the ability to launch energy projections from her eyes, which can have deadly repercussions.
Her eventual union with Orochi, in which they both fight for control of their consciousness, is exhilarating.
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4. MONSTER KING OROCHI
Orochi, the other Monster Association commander, had earned his position. He is able to keep all of the other monsters in the organization under control because of his great power.
Monster King Orochi is one of the most overpowered entities in One Punch Man, and he can only be battled by a few formidable characters in the show. Orochi’s strength was pushed beyond what was thought feasible thanks to Psykos’ training. Garou attacked Orochi at the Monster Association hideout, but the Monster King knocked him out.
Orochi even managed to avoid Saitama’s blow. Orochi’s strength was pushed beyond what was thought feasible thanks to Psykos’ training. Garou attacked Orochi at the Monster Association hideout, but the Monster King knocked him out. Orochi even managed to avoid Saitama’s blow.
Monster King Orochi’s body is bizarre; it’s made up of numerous dragons wrapped around his body in the same way that a human’s muscles are wrapped around his body. These dragons can all spit fire at breakneck rates.
With his transformation, he can also change the shape of his body at will. Changing from a humanoid-like form to a squirming horde of dragons. He can also resurrect after being killed.
Orochi is so powerful that he was able to return from Saitama’s destruction, which is an incredible achievement for this show.
5. OVERGROWN ROVER
In One-Punch Man, OverGrown Rover is an odd choice for this list because he isn’t actually bad, but rather the evil Monster Association’s guard dog. His duty is to keep an eye on the headquarters. When Garou and Tareo flee the facility, he makes his first appearance, but he doesn’t attack them until Garou sends another monster flying in his way.
Garou flees when he hears a roar and notices the monster’s head rebounding back at him. His terrifying presence contributes significantly to his total magnificence. He wields significantly more power than his role as a guard dog would suggest.
It was very impressive to see him dominate Garou in battle. The way he just brushed off any attack the hero hunter launched at him, flinging him around like a toy and shooting him with energy spheres, was a startling demonstration of his strength.
When he first sees Saitama in the HQ, he tries to assault him but fails. Before pounding Rover into submission, our hero makes a joke about his lack of training. After all, is said and done, he becomes Saitama’s pet, which was quite adorable.
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6. GERYUGANSHOOP
Geryuganshoop was Boros’ right-hand man, despite being promptly defeated by Saitama in season one of One-Punch Man. The enigmatic entity, dubbed a Dragon-level menace, possessed extraordinary telepathic skills. Melzagard, despite his enormous strength, followed Geryuganshoop’s orders.
7. Elder Centipede
The ancient centipede is a terrifying creature. He stood out from his lesser competitors in terms of both size and attitude. After Metal Bat destroys the junior and senior centipedes, Elder Centipede appears and utterly dominates him. This was his debut appearance, and he left with only his smaller parts. He subsequently appears on a mission to save Garou with Phoenix Man.
The sheer size and strength of this tremendously powerful beast is the first thing you notice about him. His shell is extremely tough, letting him withstand the majority of blows while suffering no harm.
After blast and boom rip his body to shreds, he demonstrates an intriguing talent. He just regenerates, restoring his entire damaged body.
His battles with the many heroes who challenge him are incredible to see because you get to see them go all out against something that takes everything they have.
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8. Deep Sea King
The hero Stinger kills his underlings in the sea monster arc, which leads to the introduction of the Deep Sea King. In one hit, he destroys Stinger. As he continues his march into city-J, he dominates another hero known as Lightning Maxx. Next, he encounters a Puri-Puri prisoner, an S-class hero, and after a brief battle in which the hero appears to be a match for him, Deep Sea King proves that he was merely joking and defeats him. He appears to have no bounds.
Despite being a fearsome creature with great power, he has a very regal and posh voice that comes from his tall frame and is extremely amusing. It starts to rain during his combat with Sonic, and he shifts from his dry form, acquiring even greater speed and strength. In addition, he’s becoming more monster-like.
The confrontation between Deep Sea King and Genos is the arc’s high point. He comes back up after taking a severe blow from Genos, when he was thought to be beaten, and rips off Geno’s arm.
