For me, One Punch Man still stands as one of the best parodies ever written. This is mainly because the series isn't a simple trope reversal and exaggeration of all character archetypes, as is often the case with parodies: on the surface, the series is absolutely an action-shonen. Everything is there, from the hero setting inspired by My Hero Academia to villains with developed backstories and clear motivations, diverse in design and capable of taking on different forms in battle. The diverse cast with different abilities, yet a clear hierarchy in terms of strength; the epic soundtrack during action scenes and deeply melancholic soundtrack during emotional moments; even the typical shonen protagonist with Genos, who endures constant defeats and then becomes stronger through power-ups.

The anime plays all these tropes completely seriously, maintaining the atmosphere throughout. The only anomaly in this entire setting is Saitama. He stands counterfactually to the entire world, as if he were a character from a completely different world, one that he has completely outgrown. At the same time, he is by no means a boring or monotonous character, as the fact that he is absolutely overpowered is always the trigger for his internal conflict: like any other shonen protagonist, he is actually looking for a challenge to test his strength, and the fact that he can't find it due to his counterfactual relationship with the world causes him to emotionally numb and simply yearn for the feeling he once experienced in battles. This creates a significant gap between Saitama and the rest of the cast, but all the characters have exactly what Saitama longs for: the thrill of fighting against an opponent who truly pushes them to their limits.

The dynamic between Saitama and his disciple Genos adds another layer of humor to the series. Genos, a cyborg hero seeking revenge for the destruction of his hometown, contrasts sharply with Saitama's laid-back attitude. The mentor-apprentice relationship becomes a source of comedic relief as Genos takes everything seriously, constantly striving for improvement, while Saitama remains unfazed and indifferent to the conventions of heroism. This comedic pairing enhances the overall appeal of the show by blending action with a lighthearted touch.

One Punch Man also satirizes the obsession with hero rankings and fame within the superhero genre. The Hero Association, which assigns rankings to heroes based on their performance, becomes a satirical commentary on the superficial nature of heroism. Saitama's struggles to climb the ranks despite his unparalleled strength highlight the absurdity of societal expectations and the pursuit of recognition. The humor emerges from the juxtaposition between the serious, hierarchical hero system and Saitama's casual approach to heroics.

The premise and humour are extremely well-executed, and since Saitama can't be everywhere at all times, the other characters still have the opportunity to be portrayed within a typical shonen setting. It's the overlapping of these two contrasting worlds that makes One Punch Man so brilliant for me. That, and the absolutely fantastic animation by Madhouse, which turns the fights into a visual spectacle. For me, it's one of the best series ever created. Just a shame that there was never a sequel...