Gulfmon

Gulfmon is a Demon Beast Digimon whose name and design are derived from the mythological and. It is a dark Digimon that emerged from the abyss of the Dark Area. Its large build is that of a demon beast, as immense as a mountain and possessing sturdy limbs, and attached to its lower half is a "Maw" large enough to swallow everything. What is more, it is said that the hole is connected to the abyss of the Dark Area, and it's said that those who are sucked in have their souls (DigiCores) smashed to pieces and are no longer able to escape. Its power is mighty, and it's also said that it could destroy the world in seven days.

Digimon World Dawn and Dusk
Gulfmon digivolves from ShadowWereGarurumon and appear at the Thriller Ruins area of Transfield.

Attacks
 * Black Requiem: Causes a solemn voice to be heard singing out of nowhere, whose audience is said to soon die, with their data never able to be restored.
 * Dead Scream: Lets out the sorrowful cries of the dead from its Maw, which bring death to all who hear them.