Carnage vs Sea King

This is Carnage and Sea King from One punch in his last form vs Sea King. Fight takes place in a city in the rain.

As in, Spider-man Carnage, or some other Carnage?

Because Sea King destroys Spider-man Carnage. He hit Saitama so hard it blew away some nearby rain from the shockwave at one point.

Or... do you mean Carnage Kabuto, also from OPM?

In which case... I'd say solidly Kabuto. He trashed Genos without going berserk mode, and wet Sea King didn't have an easy time with Genos. They could fight, but when Carnage Kabuto goes berserk mode, it's over.

You're correct, Carnage from OPM. Genos isn't a good example since he has become more power after his fight against Kabuto.

I don't think he got any big upgrade until his fight with the robot that was sent after King...

The wikia has finally gotten their hands on the official guidebook for OPM and discovered the Sea King is a demon class threat. Carnage Kabuto's disaster level, according to the official material, is Dragon.

Which one is higher, demon or dragon?

Lowest to highest

Wolf
Tiger
Demon
Dragon
God

Carver9: what KingD19 said. Dragon is a whole level above Demon, making Carnage Kabuto superior to the likes of the Sea King and Beefcake (who was also a Demon level threat).