Season 01: English Dubbed

For a show that has a lot of Elements being influenced from Dragon Ball Universe, and where the main character has a lot of fights ended by just One Punch, it never gets Boring. In fact, there is always a light tone set, combined with a lot of Gore.

As the show progresses, there is more combining of the comedic and seriousness of the story together, and the Writers manage to do that. The aggressive enemies make some of the fights appear to be a long Fight, until One Punch Man destroys in a single strike, here the KOs are accompanied by a bit of comedic timing.

The true Strength of the show lies in Mocking an enemy, as if they were nothing, by making the details look Sublime and the fighting sequences beyond comprehension, mix it with a flavor of humor/comedy and we get a near perfect anime. Eg: Saitama fighting Genos shows why this Anime is amazing