One-Punch Man brings plenty of action-packed sequences, but its humor stands out just as much, especially in how it playfully mocks traditional shonen anime and manga. The comedic elements of the series add another layer of entertainment, and some of its funniest moments rank among the best in anime.
A great example of the show’s humor involves the Brain and Brawn Brothers. The latter consumes a special steroid that transforms him into a towering behemoth reminiscent of something from Attack on Titan, and together, they wreak havoc on B-City.

While Saitama casually perches on Brawn’s shoulder, he orders him to attack. However, a simple mistake in distinguishing left from right leads to Brawn smashing his brother instead. The mix of brutality and absurdity makes this scene hilarious.
Saitama’s Disappointing Dream Battle
Another comedic highlight occurs when Saitama dreams about facing the Subterraneans, a race of enemies capable of challenging him in combat. His excitement builds as he finally engages in a fight that isn’t over in an instant.
However, when the Subterraneans appear in reality, they turn out to be far weaker than he had imagined. The creatures immediately surrender by raising a flag, dashing Saitama’s hopes of a real battle and leaving him utterly disappointed.
The exaggerated contrast between his expectations and reality makes this moment especially amusing. A collection of the most hilarious moments from One-Punch Man has been compiled in a video below, featuring some of the biggest laughs the series has delivered.
The Origins and Popularity of One-Punch Man
Originally introduced as a webcomic, One-Punch Man was created by ONE in 2009. The story follows Saitama, a hero who has become so powerful that he can end any fight with a single punch. His overwhelming strength leaves him searching for an opponent who can pose a challenge.
The webcomic gained widespread attention, leading to a remake illustrated by Yusuke Murata, which was published in Shueisha’s Tonari no Young Jump. Viz Media later acquired the rights for an English release.
The anime adaptation premiered in Japan in 2015, with an English dub following in 2016. Currently, the second season is available for streaming on Hulu.