Dolphmon

Dolphmon is a Sea Animal Digimon whose name and design are derived from the dolphin (海豚). A unique signal that originated within software for researching communication between different kinds of groups changed into Dolphmon, a Digimon with a unique existence. Due to its habitat being limited to the sea, it became able to move about the sea at high speeds. As expected from its appearance, it possesses advanced intelligence, but its form of thought is too complex for a normal person to understand. Although it is a species that doesn't like useless battles, It won't go easy against an opponent that comes and challenges it.

Digimon Adventure 02
A bunch of Dolphmon helped Ikkakumon, MegaSeadramon, Cody and Submarimon protect a Destiny Stone under the sea from BlackWarGreymon. However their attacks couldn't harm the powerful Mega Digimon. BlackWarGreymon then used an attack to part the sea, sending the Digimon flying away and unable to intervene.

Digimon Tamers
Something that might be Dolphmon was among the shadowed Digimon that wanted Rika to tame one of them. A silhouette of one appeared on Henry's computer.

Digimon Frontier
Despite being in the opening theme (1st ending credits in Japan), the DigiDestined never encounter one. In the Opening theme, three Dolphmon were seen with Takuya, Neemon and Bokomon on their backs.

Digimon Data Squad
10 Years Ago as told by SaberLeomon to the Gotsumon that worked for Merukimon, a Dolphmon was among the victims of the humans who were deleting Digimon.

Digimon World 2
Dolphmon digivolves from Penguinmon, and can digivolve further to Whamon. Dolphmon's attack, Pulse Blast, hits one enemy and lowers their attack.

Digimon World 3
Dolphmon appears as a random underwater enemy in Asuka server. He won't be found in the seabed that leads to Duel Island, which in both servers' case is populated by Divermon. Asuka city's Seabed is populated by Gesomon, as well as other continent to continent subsea routes. It is also available as a Blue Champion Card with 9/7.

Digimon World Dawn/Dusk
Dolphmon digivolves from Betamon, and can digivolve to Whamon or Divermon. It can be found in Macro Sea.

Digimon Racing
Dolphmon are seen through the glass in the track Underwater.

Attacks
 * Pulse Blast (Shaking Pulse): Emits the ultrasonic waves from its mouth that it uses to communicate, just at maximum power.
 * Dolphin Kick