This episode is a fan favorite, primarily due to the intense sparring match and the introduction of the Hero Association.

: The episode follows Saitama and Genos as they take the Hero Certification Exam. A major point of humor and character insight is Saitama breaking every physical record but failing the written exam, resulting in his low Class-C ranking despite his god-like power.

: Reviewers frequently highlight the fight sequence between Saitama and Genos as a standout example of Madhouse’s top-tier animation. It is often described as "breathtaking" and "insane".

The phrase "" most commonly refers to One Punch Man Season 1, Episode 5 . Reviews for this specific episode generally praise its high-quality animation and the development of the relationship between the main characters, Saitama and Genos. One Punch Man: "The Ultimate Master" (Episode 5) Review

: The sparring match in the wasteland is the episode's centerpiece. Genos goes all out with his "Incinerate" attacks, while Saitama casually dodges, eventually ending the "fight" with a simple poke to the cheek to show the massive gap in their abilities. Other Possible "Ultimate Master" Reviews Depending on your interest, this title could also refer to: The Professor's review of Ultimate Masters : r/magicTCG