: The episode introduces Genos and his "perfectly done" long backstory, which parodies typical dramatic anime monologues.

: Reviewers often prefer the anime's version of the fight against Mosquito Girl , noting that the "arm/leg exchange" and final blood splatter were more impactful than in the original manga.

Reviews for the first season generally fall in the range, with this episode specifically noted for setting the series' signature tone of absurd comedy mixed with top-tier action.

Season 1, Episode 2 of (titled "The Lone Cyborg") is widely considered a solid expansion of the show's world, famously introducing the cyborg Genos. It is praised for its high-quality animation and the humorous dynamic established between Saitama and his self-appointed disciple. Episode Highlights

“Saitama and Genos' conversation was perfectly done. Especially the long backstory. Saitama vs Beast King was great. Timing and animation was really good.” Reddit · r/OnePunchMan · 10 years ago

: This encounter is frequently cited for its excellent timing and animation. Community Impressions