Kirby's Epic Yarn screenshot
The Sea Jelly is an enemy from Kirby's Epic Yarn. The Sea Jelly is found in the Mushroom Run level. They are orange Jellyfish-like creatures with four tentacles.
The Sea Jelly does not attack Kirby or Prince Fluff. Instead, it will shoot spores that will momentarily stun the playable characters, leaving them vulnerable to enemy attacks.
Despite being called the "Sea Jelly," it is never encountered in the water.