SkullGreymon

SkullGreymon is a digivolution of Greymon that has been raised in the wrong way. His name comes from the English word skull', with grey being a misspelling of great. SkullGreymon has a body composed of bone, but it is very strong, comparable to chrome digizoid. It has no feeling, and fights only with its instinct. His ability is destroy with darkness power, being raging and furious. He can't control himself, rages and destroys everything.

Digimon Adventure 02
When the Digimon Emperor took over Greymon with a Dark Ring, he wanted him to Digivolve into MetalGreymon but he instead turned into SkullGreymon again and defeated Meramon, Flamedramon, Halsemon, Digmon and a bunch of DarkTyrannomon before reverting to Agumon as the Digimon Emperor made off with him. No matter how much he tried to get Greymon to Digivolve to MetalGreymon, he turned into SkullGreymon until Agumon's recapture and the introduction of the Dark Spiral turned Agumon into a Virus version of MetalGreymon.

Digimon Tamers
A SkullGreymon was among the many Digimon seen through the rip in the sky during Vikaralamon's rampage.

Digimon Virtual Pet
A glitch in the Digimon virtual pet system allowed a person to receive an Ultimate-level powered Digimon that looked somewhat similar to Greymon, but appeared very glitched. It was dubbed "SkullGreymon." It was not an official release of SkullGreymon, nor was it called that by anyone in Bandai, but it was the first time anyone had ever used the name in America to describe any Digimon. SkullGreymon did, however, appear in the second version of the Digimon Battle Pet.

Digimon Tamers: Brave Tamer
SkullGreymon is one of the possible Digimon who can hatch from a boss egg in a dungeon, if the player takes a certain amount of time to get to it.

Digimon World
SkullGreymon lived in the basement in Grey Lords' Mansion. He has about 6000 or more HP and as his special move can do at least 2000 or less damage. After being beaten he joined the Colosseum, although he doesm't appear in city. He can obtained by digivolving from Greymon, Devimon, Bakemon, Garurumon, and Mojyamon.

Digimon World 2
Greymon can digivolve into SkullGreymon if it has 9 DP and can Digivolve further into Machinedramon.

Digimon World 3
By increasing Agumon's dark resistance to 150, one can unlock his SkullGreymon digivolution. For partners other than Agumon (and Agumon), SkullGreymon is unlocked by Greymon at lvl 50, and darkness at minimum 130 and can unlock BlackWarGreymon at lvl 99. He appears in the card with Black S-energy and has 33 AP/ 32 HP.

Digimon World 4
SkullGreymon one of the bosses in Dry Land.

Digimon Digital Card Battle
SkullGreymon belongs to the Dark card group and has HP 1700, circle attack 960, triangle attack 350 and anti-Nature cross attack 450.

Digimon World DS
SkullGreymon appears as a unobtainable boss in the Chrome Mine when you are trying to rescue Phil. At first, he appears as a Machinedramon. Phil tricks him into inserting a chip that degenerated him into SkullGreymon instead of digivolving him. He takes up three spaces in battle and is level 21 with an extremely large health bar.

Digimon World Dawn and Dusk
SkullGreymon is #197 in Digimon World Dawn and Dusk, and is an Attacker-class Dark species Digimon with a resistance to the Dark element and weakness to the Light. Its basic stats are 236 HP, 224 MP, 146 Attack, 125 Defense, 71 Spirit, 89 Speed, and 55 Aptitude. It possesses the Powerful 4, Dark Veil, and Antidote 3 traits. It dwells in the Shadow Abyss, and begins appearing after Dark Species Quest 09: Cancel the Duel, with which it is involved. It is also available as a partner in Dusk ' s Attack Starter pack. SkullGreymon digivolves from DarkTyrannomon and can digivolve to Machinedramon. In order to digivolve or degenerate to SkullGreymon, your Digimon must be at least level 42, with 7000 Dark experience, and you must have previously befriended a SkullGreymon. SkullGreymon can also DNA digivolve from Devidramon and Greymon, or Ebidramon and Monochromon, if the base Digimon is at least level 37, with 6500 Dark experience, and you must have previously befriended a SkullGreymon. SkullGreymon can DNA digivolve to BlackWarGreymon with Allomon, or to SkullMammothmon with Myotismon or MegaKabuterimon (Blue). SkullGreymon can be hatched from the Nightmare Egg or Kaizer Egg.

Digimon World Championship
SkullGreymon can digivolve from Ankylomon, Growlmon, Greymon, Tyrannomon, Devidramon, Tortomon and Monochromon by passing time, and can digivolve to SkullMammothmon by passing time. It is found in Sizzling Desert and Chrome Mines.

Attacks
 * Skull Destroy/Dark Shot (Ground Zero): Fires fish-shaped organic missile from his back to destroy enemies.
 * Double Dark Shot (Ground Zero Modified): Launches double "Dark Shot" missiles at opponents.
 * Curse Breath: Releases dark purple breath to paralyzes foe.