1: One Punch Man's Saitama is secretly unbeatable

2: Genos is secretly Saitama's brother

3: Saitama is in a coma and dreaming

4: The Hero Association is hiding Saitama's true power

5: Saitama is actually a villain in disguise

6: One Punch Man is set in a post-apocalyptic world

7: The monsters in One Punch Man are actually humans

8: Saitama's power comes from a mysterious source

9: Saitama is a god-like being in disguise.