ANIME FIELD NOTES
One-Punch Man
Quick notes for reviewing a match. This page is shorter than our expanded study guides.
Saitama can end most fights with a single punch. Finding a satisfying challenge is harder than beating a monster, and getting credit isn't simple either. Genos joins him while the Hero Association tries to fit wildly different fighters into its ranking system.

What to notice
A hero's registered rank isn't a reliable measure of what they can do. Keep personal names, hero aliases and Association classes separate. Production questions need their season: a studio attached to one season doesn't automatically cover the next.
Keep these straight
- A Hero Association rank and actual fighting ability are different measures.
- Genos and Saitama have different roles in their partnership.
- The first and second TV seasons have different lead animation studios.
Test yourself
There are 11 related questions in the current game. The examples below may contain story spoilers. Try an answer before expanding its explanation.
Trained so hard he went bald, and now ends every fight with one punch. One-Punch Man
ANSWER
Saitama
The bald appearance and overwhelming punch identify Saitama. Genos is the cyborg in the same partnership. Their association is a reason both names may look familiar, but their appearances and abilities are different.
Which studio animated the first season of One-Punch Man? One-Punch Man
ANSWER
Madhouse
Madhouse is the animation-production answer for the version named here. A studio credit identifies the animation team, not the source author or the streaming service. Check the season or year before applying that credit to another adaptation.
Saitama's punch that is even stronger than his normal punch. One-Punch Man
ANSWER
Serious Punch
Serious Punch is the name that matches the ability described in the prompt. Link a technique to its user and defining effect; a character, a transformation and an organization can appear together without being the same kind of answer.
Saitama vs Boros One-Punch Man · The Dark Matter Thieves' invasion
ANSWER
Saitama
The accepted outcome for One-Punch Man · The Dark Matter Thieves' invasion is Saitama. This is a result in a specific encounter, not an overall ranking of the characters. Read the arc and stated victory condition; a rematch or interrupted battle can have a different result.
Sources & corrections
Check the linked series and production pages for context. Studio credits apply to the adaptation named in the question. If a battle result seems ambiguous, send us the scene or source that explains why.
Found an ambiguous question? Use Report question in match results, or send a correction with the prompt and the relevant source.