Gunion

Gunions are octopus-like enemies in Super Mario Land, found in the Muda Kingdom. Gunions have a simple attack pattern and subdue the Marine Pop whenever it comes into range. If shot three times, it will split into two balls, both of which will home in on Mario. Defeating a Gunion nets Mario an extra 800 points. Gunions are only found in World 2-3, the Marine Pop's level. One Gunion posed as Princess Daisy, which Mario discovered after defeating Dragonzamasu.

A green Gunion is among the monsters chasing Mario in the Nintendo Comics System story The Fish That Should've Gotten Away.

Super Mario Land

 * 3DS Virtual Console manual: "The Gunion shakes up and down in the water. Be careful--once you hit it twice with torpedoes, it splits in two and attacks."