Gesomon

Gesomon
Gesomon is a Mollusk Digimon whose name and design are derived from "squid legs" (下足). It has the shape of a squid and inhabits the depths of the Net Ocean. Although it is feared as the "White Demon of the Depths", it is highly intelligent and will not harm Digimon outside of its territory. However, if they seem to cross into its territory even for a moment, it will attack them like a fierce, raging god. For its attack style it specializes in "Hit and Away", in which it inflicts a single blow and then immediately withdraws.

Digimon Adventure
A Gesomon attacked the kids shortly after they returned from the Digital World and were heading home. He was a servant of Myotismon dispatched to search the waterways around the area where the Eighth Child was thought to live in. Gomamon digivolved to Ikkakumon in order to fight and destroy him after a short exchange of blows.

Digimon Adventure 02
Two Gesomon were seen during the Post-Christmas Invasion. The first was seen in a newsflash at the very beginning, attacking a ship with an Ebidramon. Later, when Joe, Cody and their partners travelled to Australia, a Gesomon, an Ebidramon, and a Shellmon attacked Derek, a local DigiDestined. All three champions were driven off by the references to them as seafood by Zudomon, Coelamon and Submarimon. Upon Scorpiomon's defeat, they were herded by the other Australian Digi-Destined and sent back to the Digital World.

Digimon Tamers
When Vikaralamon caused a rip in the sky in which many digimon silhouettes were visible, a Gesomon was amongst them.

Digimon Frontier
A Gesomon had its fractal code absorbed by the mass murderer in the past.

Digimon Adventure V-Tamer 01
When Zeromaru and Taichi went to retrieve the Water Tag, they had to defeat Lord MarineDevimon's two minions, one of which was a Gesomon.

Digimon World 2
Gesomon digivolves from Syakomon and can further digivolve to MarineDevimon or WaruSeadramon depending on its DP. It also appears as boss along with Kuwagamon and Octomon in Video Domain. It can also be found in the wild with Vademon and Octomon. Its attack, "Coral Crusher", reduces quickness (speed) on one target.

Digimon World 3
Gesomon in found in Asuka Central Sector, to be exact at the stairs heading to the seabed right next to the door which leads in Asuka City.

Digimon World Dawn/Dusk
Gesomon digivolves from Betamon. Gesomon can DNA digivolve with Octomon to create Dragomon.

Digimon World Championship
Gesomon can digivolves to MegaSeadramon with 8 battles. It can be found in Wave Coast. Attacks
 * Coral Crusher/Elastic Arms (Devil Bashing): Unleashes a barrage of attacks that capitalizes on its many legs.
 * Deadly Shade: Attacks with a powerful squid ink that will completely numb the opponent's vision for a long time if they get hit by it.

Gesomon X
Gesomon X a Mollusk Digimon and carrier of the X-Antibody.

Attacks
 * Deadly Shade
 * Mad Viking