How do you make a game about a character that's literally invincible and unbeatable?
It's a problem everyone that's thought about making something about Superman has had to face, and it's a problem that Spike Chunsoft is also saddled with. They've made a game based on One Punch Man, a manga whose main character, a bald fellow named Saitama, is so strong that every fight he's ever been in, be it against muggers, gods, or rogue meteors, has ended in a single blow.
It's not much of a stretch to say that a fighting game where one character is - by design - literally impossible to beat wouldn't be very much fun to play. And yet to somehow power Saitama down would be an even bigger betrayal of the source material.
What does one do?