Infermon

Infermon is a Digimon whose type is unidentified. It is the Ultimate stage of Diaboromon. Its name is derived from the word inferno.

Digivolved from the 6-tentacled Chrysalimon, Infermon resembles a 6-legged ground spider with even higher speed. Both Diaboromon and Armageddemon are its Mega form, and the latter one's design is more related to Infermon, having the same 6 legs. When charging at an eneny, it withdraws its legs inside its body and launches itself at the foe, but as a result, it can only travel in a straight line.

Digimon Tamers
While Beelzemon was testing his new powers on a bunch of Chrysalimon, Calumon's power Digivolved the remaining Chrysalimon into an Infermon. However not even he could bring down Beelzemon, who destroyed him and absorbed his data.

Digimon WOrld 3
Infermon can be found in Amaterasu's North Sector, in the Dark Dungeon. The Dark Master has this digimon. Infermons can also be fought a lot on Gunslinger.

Digimon World 4
Numerous Infermon are seen in the Machine Pit.

Digimon Digital Card Battle
Infermon appears in Infinity Tower as the Battle Master. Infermon belongs to the Dark card group. He is also the only Ultimate digimon that needs only 20 dp to digivolve.

Digimon World DS
Infermon digivolves from Chrysalimon, and can digivolve into Diaboromon or Beelzemon.

Digimon World Dawn/Dusk
Infermon digivolves from Chrysalimon, and can digivolve to Diaboromon. Infermon can be found at Chaos Brain.

Attacks
 * Spider Shooter (Hell's Grenade): Opens his mouth and a cannon comes out and fires.
 * Network Grenade (Cocoon Attack): Withdraws into his shell and thrusts himself at his enemies.