Infermon

Infermon is an Unidentified Digimon whose name is derived from "Inferno" and whose design is derived from the Y2K Bug. It has the appearance of a long-legged spider, and while its form is usually in an outstretched state, with its head and limbs extended, it is also able to assume a cocoon form, with its limbs retracted into its body. When it goes into its cocoon form, its defense is raised such that every attack is deflected, but it can only go forward in a straight line, and the fact that it cannot modify its trajectory is a clear weakness. It is able to penetrate every network, despite the strength of their security. If Infermon is released from the Network, the world will probably then collapse into chaos.

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): Fires shells of a terrible, destructive energy from the muzzle inside of its mouth.
 * Network Grenade (Cocoon Attack): Charges the opponent while in its cocoon form.
 * Virus Skater