MetalGreymon (Vaccine)

MetalGreymon is a vaacine, Ulitmate level Digimon who usually digivolves form Greymon that was treated with proper care. MetalGreymon is very strong and can deal tons of damage.

Digimon World DS
MetalGreymon digivolves from Greymon, and can digivolve to WarGreymon, BlackWarGreymon or Omnimon (once you've befriended an Omnimon).

Digimon World Dawn & Dusk
MetalGreymon digivolves from Greymon, at Lv. 34 and 3000 Dragon Exp. Then, he digivolves into WarGreymon. MetalGreymon can be found at Chaos Brain. In Dusk, it can be found in Sunshine City.

Digimon World Championship
MetalGreymon can digivolve from Veedramon and GeoGreymon with 40 Dragon AP and Tyrannomon and Greymon with at least 10 battles, and digivolves to WarGreymon with 14 battles, with at least 50% won, 60 Dragon AP and an Egg revert, or VictoryGreymon with 30 battles, with 50% won and 2 egg reverts.

Attacks

 * Mega Claw (Trident Arm): Launches its tethered Trident Arm to slash or wrap up enemies.
 * Giga Blaster (Giga Destroyer): Fires organic missiles form the hatch on part of its chest.
 * Metal Arm
 * Metal Slash
 * Tera Destroyer: Launches an enhanced version of its "Giga Blaster" attack.
 * Metal Slash II (メタルスラッシュ改  Metal Slash Kai, lit. "Metal Slash Revision"): Slashes with its claw.
 * Powerful Flame: Unleashes a wave of fire from its claw.