Diaboromon

Diaboromon (Diablomon in Japan) is an Unidentified Digimon whose name is derived from the Spanish "Diablo", and whose design is derived from the Y2K Bug. By absorbing all the data on a computer network, this Digimon can repeatedly digivolve and grow to a gigantic size in an attempt to commit all kinds of destruction in the Digital World. A Diaboromon who absorbs a great amount of data and knowledge will take on an almighty existence and will enjoy his destruction and massacre. However, all Diaboromons are terrible once their purposes are clear; one even planned to take over a military computer and destroy all the Real World through a nuclear attack.

Digimon Adventure 02: Tag Tamers
Ryo and Ken were summoned to the Digital World to take care of another Diaboromon after the first was defeated by Omnimon.

Digimon Tamers
Three Diaboromon, each the fusion of a Chrysalimon mass, were among the Mega Level Digimon to aid Azulongmon to fight against the D-Reaper.

Digimon: Digital Card Battle
Diaboromon appears in Infinity Tower as the Battle Master. The Diaboromon card belongs to the Dark card group. It can be obtained if you fuse Infermon and Digitamamon at the Fusion Shop.

Digimon World 2
Diaboromon can be found in Tera Domain after you beat the game. Diaboromon digivolves from Okuwamon. Its a Virus-type in this game, and is the one of the "Mega Form Digimon" as Prof. Piyotte referred to them. They are: Virus: Diaboromon, Vaccine: Omnimon and Data: Baihumon which Prof. Piyotte couldn't remember.

Digimon World 3
Diaboromon is an acquirable Digivolution for any party Digimon. Diaboromon is gained by raising a BlackWarGreymon and a GranKuwagamon to level 99 each. Also, if you DNA Digivolve BlackWarGreymon and GranKuwagamon then Diaboromon will appear and attack with Lost Paradise, then he disappears. Also avaliable as a black Mega Digimon card with 58/58 and alongside BlackWarGreymon and probably VenomMyotismon is the fourth strongest Digimon card.

Digimon World 4
Diaboromon is the third boss you will encounter in Venom Jungle.

Digimon Rumble Arena 2
Diaboromon is a boss in story mode who can be unlocked by beating him.

Digimon World DS
Diaboromon digivolves from Infermon at Lv50 with 250+ attack. Diaboromon can also be found in Core Field. Also, a Tamer with 2 Diaboromon and a Gallantmon is fought at the Tamer Arena.

Digimon Racing
Diaboromon is also a boss like Omnimon only in the track Digital Space.

Digimon World Dawn/Dusk
Diaboromon digivolves from Infermon.

Attacks (strongest missile technique in the game)
 * Web Wrecker (Catastrophe Cannon): Fires a powerful destructive energy bullet from the orb on his chest.
 * Lost Paradise (Paradise Lost): Releases a terrible explosion from his body.
 * System Failure (System Fail): Encases himself within a gigantic green sphere, blasting all nearby opponents away and De-Digivolving them.
 * Cable Crusher: His arms extend to attack the enemy.
 * Line Surge: Spreads both of his arms outwards and spins in place.
 * Page Fault: Rolls over and strikes enemies with the blades on his back.
 * Virus Download: Holds his hands back, charging them, and then thrusts forward, extending his arms and shooting his hands forward.
 * Inferno Missile(Arastugi) shoots a strong skull headed missile that can hit all enemies