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
: Fans often highlight the comedic irony of Saitama—who can destroy galactic threats with a single blow—struggling and failing to swat a simple mosquito. [S1E2] T...Punch
: This encounter is frequently cited for its excellent timing and animation. Community Impressions Season 1, Episode 2 of (titled "The Lone
“The first season was excellent, with very great animation and impressive action sequences, being an amusing parody of action anime shows and the superhero genre.” IMDb One Punch Man Episode 2 Discussion : r/OnePunchMan : This encounter is frequently cited for its
“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
: 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.