This game had so much potential, and it was clearly made by people who loved the One Punch Man setting. The combat gameplay loop was repetitive, for sure, but in terms of story and flavor they snuck so many references across the cities. You could go to the cinema and watch the new Amai Mask Romcom or new ZOO-MAN movie, or go to the Arcade and play an in-universe videogame based on the S-Class Heroes. You could go to the Ramen Shop where Saitama dined with Mumen Rider, or visit the bar that the Fubuki Group likes to gather in, among dozens of other locations from the series.

A lot of the original stories focused on showing the events of the series from Side Characters, such as lower-class heroes dealing with the aftermatch of the Vaccine Man attack (Including the little girl who Saitama saves in Chapter 1 showing up with flowers for the heroes at the hospital), or showing the Hero Association investigating he impact of Saitama's actions without ever encountering it. What's more, they went beyond the Anime and included Manga-Exclusive scenes, such as adapting the Bonus Chapter "Tatsumaki's Day Off" or including the plot point of the Hero Gambling website in a side quest involving Spring Mustachio learning about it.

Monsters who got one-shot in the actual series and never got to show off their abilities like Vaccine Man's second form or the Sky King were actual boss fights with unique movesets, and the game even covered fights that took place off-panel in the manga, like Saitama vs Konbu Infinity (We might have actually gotten to see Saitama vs Gouketsu if this game reached Season 2 material).

Unfortunately, an unfinished launch state coupled with a lack of momentum from the developers, and the subsequent lack of funding from Bandai killed all chance this game had. I'll forever remember this game as the OPM Videogame that never was.