One Punch Man: A Hero Nobody Knows from Bandai Namco for the Sony PS4 is an action fighting game set in a universe where threats are daily occurrences and heroes the sole hope against annihilation.

Saitama the main protagonist, is a hero that can obliterate even the strongest foes with a single punch, a situation that bother him to no end. The game will feature 3 vs. 3 battles, where players can form powerful teams using many familiar faces, the first confirmed playable characters being Genos, Hellish Blizzard, Mumen Rider, Speed-o'-Sound Sonic and Saitama.

The titular One-Punch Man is so strong he can end any fight in one punch. To balance his power in the game, players who select Saitama will be forced to hold off the enemy team until he arrives to finish the battle, and lose the character slot that would normally go to a playable fighter.

If the player is defeated before Saitama arrives, they lose. However, by landing certain combos, they can speed up Saitama's arrival!