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The Best Episodes of One-Punch Man

Every episode of One-Punch Man ranked from best to worst. Let's dive into the Best Episodes of One-Punch Man!

Binge this in 14h 24m•Peaking at 9.2/10

Saitama is a hero who only became a hero for fun. After three years of “special” training, though, he’s become so strong that he’s practically invincible. In fact, he’s too strong—even his mightiest opponents are

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Episode Rankings

  1. #1 Fan Favorite
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    One-Punch Man Season 1 Episode 12 - The Strongest Hero
    9.2/10(46 votes)

    #1 - The Strongest Hero

    S1:E12

    The inconceivably powerful Lord Boros has traveled untold distances in search of someone who can cure his boredom: Saitama! With the fate of humanity in the balance, will the two champions at last find in each other the worthy opponent they’ve been searching for?

    Director:Shingo Natsume
    Writer:Tomohiro Suzuki

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  2. One-Punch Man Season 1 Episode 9 - Unyielding Justice
    8.8/10(39 votes)

    #2 - Unyielding Justice

    S1:E9

    As the battle with the Deep Sea King reaches its climax, more heroes fall to the aquatic despot’s brutal attacks. Which of them has what it takes to be a true hero?

    Director:Shunichi Yoshizawa
    Writer:Tomohiro Suzuki

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  3. One-Punch Man Season 1 Episode 11 - The Dominator of the Universe
    8.8/10(39 votes)

    #3 - The Dominator of the Universe

    S1:E11

    As a colossal spaceship floats in the skies above City A, a member of its monstrous crew battles on the ground against a group of S Class heroes. Despite their powers, they can’t seem to finish it off. Meanwhile, Saitama has boarded the enemy ship on his own.

    Director:Yousuke Hatta
    Writer:Tomohiro Suzuki

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  4. One-Punch Man Season 1 Episode 5 - The Ultimate Master
    8.6/10(39 votes)

    #4 - The Ultimate Master

    S1:E5

    Though he’s been doing the hero gig for three years, Saitama realizes that the public knows nothing about him. Determined to get a little recognition, he decides to become a pro hero, but first he must pass the Hero Association tests and become a full-fledged member.

    Director:Shunichi Yoshizawa
    Writer:Tomohiro Suzuki

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  5. One-Punch Man Season 1 Episode 10 - Unparalleled Peril
    8.6/10(36 votes)

    #5 - Unparalleled Peril

    S1:E10

    Saitama tags along to an emergency meeting of Class S heroes and discovers that a seer has foretold a serious danger threatening the Earth. Though the crisis could occur anytime in the next six months, the heroes are surprised to hear the roar of explosions that very hour!

    Director:Shinichiro Ushijima
    Writer:Tomohiro Suzuki

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  6. One-Punch Man Season 1 Episode 2 - The Lone Cyborg
    8.4/10(44 votes)

    #6 - The Lone Cyborg

    S1:E2

    A monster is moving toward City Z, one that has been created by the mysterious organization known as The House of Evolution. Genos, a young cyborg, attempts to stop it, but gets in over his head before Saitama happens along.

    Director:Shinichiro Ushijima
    Writer:Tomohiro Suzuki

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    The 20 WORST Episodes of One-Punch Man

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  7. One-Punch Man Season 1 Episode 4 - The Modern Ninja
    8.4/10(39 votes)

    #7 - The Modern Ninja

    S1:E4

    A group of battlesuit-clad terrorists called “The Paradisers” appears in City F, led by an enormous man known as Hammerhead. Calling for the redistribution of wealth, the group targets the fat-cat Zeniru, who in turn dispatches his bodyguard to defeat them. Unfortunately, Saitama is on the same errand.

    Director:Nobuhiro Muto
    Writer:Tomohiro Suzuki

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  8. One-Punch Man Season 1 Episode 8 - The Deep Sea King
    8.4/10(36 votes)

    #8 - The Deep Sea King

    S1:E8

    A pack of monsters calling themselves the “Clan of the Seafolk” arrive on the shores of City J intent on invading the land. When the hero sent to fight them is defeated easily by the Deep Sea King himself, Saitama and Genos head for the city to help.

    Director:Nobuhiro Muto
    Writer:Tomohiro Suzuki

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  9. One-Punch Man Season 1 Episode 3 - The Obsessive Scientist
    8.3/10(44 votes)

    #9 - The Obsessive Scientist

    S1:E3

    Saitama and Genos glean information about The House of Evolution and its founder Dr. Genus, a scientist with dangerous ideas on artificial human evolution. Meanwhile, Dr. Genus learns of Saitama’s amazing strength and has plans of his own for One-Punch Man.

    Director:Yousuke Hatta
    Writer:Tomohiro Suzuki

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  10. One-Punch Man Season 1 Episode 7 - The Ultimate Disciple
    8.3/10(37 votes)

    #10 - The Ultimate Disciple

    S1:E7

    An enormous meteor hurtles toward City Z, forcing the Hero Association to ask its S Class heroes to respond. When all their efforts prove in vain, Genos decides it’s up to him to protect the home of his master and stop the meteor, no matter what the cost.

    Director:Yousuke Hatta
    Writer:Tomohiro Suzuki

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  11. One-Punch Man Season 2 Episode 12 - Cleaning Up the Disciple's Mess
    8.3/10(25 votes)

    #11 - Cleaning Up the Disciple's Mess

    S2:E12

    Silverfang and Bomb catch up with Garou while the hero hunter is battling Genos, starting a whirlwind battle that draws in more and more combatants as it marches towards its hair-raising climax!

    Directors:Makoto Sokuza, Chikara Sakurai, Youhei Suzuki
    Writer:Tomohiro Suzuki

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  12. One-Punch Man Season 1 Episode 6 - The Terrifying City
    8.2/10(37 votes)

    #12 - The Terrifying City

    S1:E6

    It’s been five days since Saitama became a professional hero and he has yet to do anything heroic. When Genos informs him that C-class heroes who don’t fight bad guys are dropped from the hero registry after a week of inaction, Saitama heads out on patrol, yet can’t find any criminals or monsters to stop.

    Director:Shinichiro Ushijima
    Writer:Tomohiro Suzuki

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  13. One-Punch Man Season 2 Episode 11 - Everyone's Dignity
    8.2/10(26 votes)

    #13 - Everyone's Dignity

    S2:E11

    Garou is at last surrounded by multiple heroes and forced to fight, even though he’s covered in wounds and nearly at his limit. The hero hunter still has his incredible ability to read opponents’ fighting styles, but there are surprises in store for all.

    Directors:Chikara Sakurai, Katsushi Sakurabi
    Writer:Tatsuro Inamoto

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  14. One-Punch Man Season 2 Episode 3 - The Hunt Begins
    8.1/10(37 votes)

    #14 - The Hunt Begins

    S2:E3

    Garou, out hunting heroes, can barely contain his excitement when he gets the chance to battle the S Class hero Tank-top Master. Meanwhile, Silverfang shutters his dojo to begin his own hunt of his former disciple.

    Director:Ryo Ando
    Writer:Tatsuro Inamoto

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  15. One-Punch Man Season 2 Episode 8 - The Strong Ones Fight Back
    8.1/10(32 votes)

    #15 - The Strong Ones Fight Back

    S2:E8

    Goketsu, the first Super Fight Tournament champion, arrives in the stadium. Having now become a monster, he’s aiming to force the Super Fight competitors to turn into monsters themselves. When several do, it’s up to Suiryu to take them on alone.

    Director:Yoshio Suzuki
    Writer:Tatsuro Inamoto

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  16. One-Punch Man Season 1 Episode 1 - The Strongest Man
    8.0/10(59 votes)

    #16 - The Strongest Man

    S1:E1

    Saitama is a guy who’s a hero for fun. After saving a child from certain death, he decided to become a hero and trained hard for three years. Though he’s now so strong he can defeat any opponent with a single punch, lately he feels as if, in exchange for overwhelming power, he’s lost something even more important.

    Director:Shingo Natsume
    Writer:Tomohiro Suzuki

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  17. One-Punch Man Season 2 Episode 7 - Class S Heroes
    8.0/10(35 votes)

    #17 - Class S Heroes

    S2:E7

    As the Super Fight tournament heads for its grand finale, the Class S heroes battle to hold back the tide of monster incursions. Meanwhile, Atomic Samurai is setting in motion a plan of his own.

    Director:Shigeki Awai
    Writer:Tatsuro Inamoto

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  18. One-Punch Man Season 2 Episode 1 - Return of the Hero
    7.8/10(43 votes)

    #18 - Return of the Hero

    S2:E1

    Saitama is out shopping with Genos in tow when the pair come across G4, a demonic robot on a mission to eliminate King. Elsewhere, Sitch attempts to recruit various cutthroats, villains and assassins of the underworld to help the Hero Association.

    Director:Shuuji Miyazaki
    Writer:Tomohiro Suzuki

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  19. One-Punch Man Season 2 Episode 2 - Human Monster
    7.7/10(38 votes)

    #19 - Human Monster

    S2:E2

    Garou issues a declaration of war on the Hero Association through terrifying means, Hellish Blizzard gives Saitama an ultimatum, and Genos decides to eliminate his master's stalker, Speed-o'-Sound Sonic.

    Director:Hiroyuki Okuno
    Writer:Tomohiro Suzuki

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  20. One-Punch Man Season 2 Episode 9 - The Ultimate Dilemma
    7.7/10(31 votes)

    #20 - The Ultimate Dilemma

    S2:E9

    Just as Suiryu finds himself in the depths of despair, Saitama suddenly appears to help him out. But despite all Saitama’s strength, there’s still something bugging the hero that he just can’t seem to shake.

    Director:Shuuji Miyazaki
    Writer:Tomohiro Suzuki

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  21. One-Punch Man Season 2 Episode 10 - The Encircling Net of Justice
    7.6/10(28 votes)

    #21 - The Encircling Net of Justice

    S2:E10

    The Monster Association issues a challenge to the Hero Association, telling them they have only three days to rescue the hostage Waganma. Elsewhere, Garou tries to recover from his constant fighting, but things don’t quite go as planned.

    Director:Ryo Ando
    Writer:Tomohiro Suzuki

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  22. One-Punch Man Season 2 Episode 4 - Metal Bat
    7.4/10(33 votes)

    #22 - Metal Bat

    S2:E4

    Assigned to guard a VIP and his son, Metal Bat couldn't be less thrilled. But when the group is suddenly attacked all hell breaks loose. Meanwhile, Saitama has disguised himself as Charanko in order to enter the “Super Fight” martial arts tournament.

    Directors:Makoto Sokuza, Miyuki Ishida, Riki Fukushima
    Writer:Tatsuro Inamoto

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  23. One-Punch Man Season 2 Episode 6 - The Uprising of the Monsters
    7.3/10(36 votes)

    #23 - The Uprising of the Monsters

    S2:E6

    The Super Fight tournament kicks off while Genos takes on multiple monsters who have appeared in City C. Elsewhere, countless monsters are wreaking havoc in multiple areas, but the Hero Association is being overwhelmed by the sheer number of threats.

    Director:Hideki Okamoto
    Writer:Tomohiro Suzuki

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  24. One-Punch Man Season 2 Episode 5 - Martial Arts Tournament
    7.1/10(35 votes)

    #24 - Martial Arts Tournament

    S2:E5

    Monsters from the Monster Association launch simultaneous attacks on all the human cities, attempting to overwhelm the forces of the Hero Association. Meanwhile, the “Super Fight” martial arts tournament kicks off.

    Directors:Kozo Kaiho, Tomohiro Kamitani
    Writer:Tomohiro Suzuki

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  25. One-Punch Man Season 3 Episode 12 - Ultimate Lifeform
    6.0/10(10 votes)

    #25 - Ultimate Lifeform

    S3:E12

    The heroes battle monsters while Terrible Tornado faces Gyoro-Gyoro. Orochi appears before Saitama.

    Director:Unknown
    Writer:Unknown

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Best Episodes Summary

"The Strongest Hero" is the best rated episode of "One-Punch Man". It scored 9.2/10 based on 46 votes. Directed by Shingo Natsume and written by Tomohiro Suzuki, it aired on 12/21/2015. This episode scored 0.4 points higher than the second highest rated, "Unyielding Justice".