One Punch Man

Demon-level monsters are the strongest in the One Punch Man universe, but among them, some are more dangerous than others.

The Deep Sea King was able to defeat the likes of Genos and Puri Puri Prisoner with his sheer physical strength. Hundred-Eyes Octopus was one of the many monsters sent by the Monster Association to wreak havoc in cities. He also had the traits of a cockroach, which made it extremely difficult to kill him with normal attacks. Royal Ripper was a Demon-level threat who was affiliated with the Monster Association. With just a single punch, Marugori was able to send shockwaves through an entire city. He was a sadistic individual who thrived on the pain and misery of others. Awakened Cockroach was ridiculously quick, and he was even He was also able to form a barrier with his abilities, although it was not nearly as strong as Tatsumaki's. Due to his transformation, Jagan's psychic powers improved several times over, and he became a valuable asset to the Monster Association. [the main antagonist of the Sea Monster arc](https://gamerant.com/one-punch-man-major-villain-strength-ranked/). G5's exterior body was strong enough to withstand the attacks from other monsters and heroes. Due to the massive number of Demon-level monsters, it may seem that all of them have the same level of skill.