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 taken out with a single punch, and it turns out that being devastatingly powerful is actually kind of a bore. With his passion for being a hero lost along with his hair, yet still faced with new enemies every day, how much longer can he keep it going?
Season 1 – Episode 12
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?
The episode was rated from 1264 votes.
#2 – The Dominator of the Universe
Season 1 – Episode 11
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.
The episode was rated from 1137 votes.
#3 – Unyielding Justice
Season 1 – Episode 9
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?
The episode was rated from 1123 votes.
#4 – The Hunt Begins
Season 2 – Episode 3
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.
The episode was rated from 680 votes.
#5 – Cleaning Up the Disciple’s Mess
Season 2 – Episode 12
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!
The episode was rated from 605 votes.
#6 – Class S Heroes
Season 2 – Episode 7
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.
The episode was rated from 648 votes.
#7 – Unparalleled Peril
Season 1 – Episode 10
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!
The episode was rated from 1127 votes.
#8 – The Obsessive Scientist
Season 1 – Episode 3
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.
The episode was rated from 1286 votes.
#9 – The Varieties of Pride
Season 2 – Episode 11
Garo 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.
The episode was rated from 603 votes.
#10 – The Lone Cyborg
Season 1 – Episode 2
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.
The episode was rated from 1382 votes.