MetalGreymon X is a Cyborg Digimon and carrier of the X-Antibody. Both its flesh portions and remodelled portions are perfectly well-balanced, possibly because of how intense the power it had obtained was. The "Trident Arm VER 9.9" on its left arm has a control program set in its DigiCore that has been upgraded to its limit, and possesses the energy equivalent of a single shot of "Giga Destroyer" in just one swing, so it is an offensive force that must never be endured in close combat.
- Trident Arm: Launches its tethered Trident Arm to slash or wrap up enemies.
- Giga Destroyer: Fires organic missiles from the hatch on part of its chest.
- Trident Arm VER. 9.9
- Metal Slash: Slashes with its claw.
- MetalGreymon (Vaccine) (X-Antibody) (メタルグレイモン（ワクチン種）（Ｘ抗体）)
- MetalGreymon X (メタルグレイモンＸ)