Shellmon

Shellmon is a Champion Level Sea Animal Digimon. Shellmon can withdraw into his shell for protection. The top of the shell can spin when he emerges from the sand. He lives in a shallow seabed of seashores near the Net Ocean, that takes the form of a hermit crab. Because he is a mollusk, he will live in anything he enters. Because he keeps on growing, he has to change dwellings; his full size is the size of a small rocky mountain. He has a forest counterpart in MoriShellmon.

Digimon Adventure
After the DigiDestined's encounter with Kuwagamon, a Shellmon appeared under the sands of a beach where strange phone booths were lined up. Tai and Agumon engaged Shellmon in battle up to where Agumon Digivolved to Greymon for the first time and knocked Shellmon far into the ocean. After escaping the Dark Masters, the DigiDestined ended up in the same location and encountered the same Shellmon in the water (this time, it had dialogue). Biyomon and Tentomon were able to send it retreating.

Digimon Adventure 02
In a frozen area of the Digital World, Shellmon reappeared under the control of the Digimon Emperor's Dark Ring attacked Joe, Gomamon, Cody and Armadillomon while the others destroyed the Control Spire. Gomamon tried to pacify it but did not work. He was freed from the Dark Ring by Digmon, but then Ebidramon appeared. When Digimon began to appear in the Real World, he appeared once more with an Ebidramon and a Gesomon in Australia while they were chasing an Australian Digi-Destined named Derek and his Digimon Partner Crabmon. Ikkakumon, Crabmon and Armadillomon drove them away with thought of them in food. The 3 Digimon later appeared being herded with a Whamon and a Raremon after Zudomon, Submarimon and Coelamon defeated Scorpiomon and took down the Control Spire. They were all sent back to the Digital World after Scorpiomon's defeat.

Digimon World
Shellmon can be found in bridge of Great Canyo after beating Ogremon in his Hideout. She need helps to free her out. Go to the elevator on Ogremon's Hideout and your guy should say that's causing the floor to shake. Then it will ask you if you want to go in it. Press No. Now go to where Shellmon was (but you have to go trough Freeze Land or it won't work) and she will joins the city. After recruiting her, she the Shell Newspaper to informs you to next recruiting Digimon.

Digimon World 2
Shellmon digivolves from Crabmon, and can further digivolve into Scorpiomon. His speciality is Ice and his special attack is Hydro Pressure.

Digimon World 3
Shellmon is found in Asuka South Cape and Plug Cape. It can be found by fishing in Ether Jungle. It is also available as a Blue Champion Card with 13/15.

Digimon World Dawn/Dusk
Shellmon digivolves from Syakomon and can be found in Loop Swamp.

Attacks Variations / Subspecies
 * Aqua Blaster (Hydro Pressure): Shoots water from the top of his head.
 * Slamming Attack: Crushes his enemies with his fists
 * MoriShellmon