MetalGreymon Alterous Mode is a Cyborg Digimon. MetalGreymon, who acquired mighty power by mechanizing its upper body, has been updated with further mechanization to its right arm. With the accumulation of fierce battles that it has lived through, it transformed its right arm into a huge energy cannon called "Alterous" so that it can fight against tough enemies that draw near. It exhibits its full combat ability at both close and long range, and has been remodelled to defeat any tough enemy it encounters.
- Positron Blaster: Concentrates energy into the "Alterous" and fires subluminal bombardments.
- Alter Blade: Converts the energy it has accumulated into a positron blade.
- Giga Destroyer: Fires organic missiles from the hatch on part of its chest.
- Trident Arm: Launches its tethered Trident Arm to slash or wrap up enemies.
- Giga Storm: Sends out a high-temperature energy wave from the firing ports on its chest.
MetalGreymon Alterous Mode is a bipedal reptilian Digimon whose design carries elements of the Ceratosaurus and the classic monster Gomora albeit mechanized resulting in it having missile hatches on its chest and robotic mechanisms under it skin which are partially exposed on its tail and legs. It has orange scales with blue stripes covering its body and has purple tattered wings on its back. It has a robotic left arm with a tether connecting its hand which has three clawed fingers and it has three clawed toes on its feet, with claws protruding from its heels. It wears a metallic rhinoceros beetle-like helmet on its head with red hair underneath on the back of its head and its right arm is the Alterous, a railgun that and can also be used as a sword.
- MetalGreymon: Alterous Mode (メタルグレイモン：アルタラウスモード)
Official romanization given by the Digimon Reference Book and used in the franchise. Some American English media leave out the colon whilst some Japanese media leave out both "Alterous Mode" and the colon.
- (En:) Metal.
- (En:) Grey, meaning "old" or "ancient".
- (La:) Alterous, from Alteros (lit. "others").
Notes and references
- Digimon Adventure:, "The Tide-Turning Update" 
- Digimon Adventure:, "The Final Stage, DoneDevimon" 
- Digimon Adventure:, "The Children's Fight for Survival" 
- Digimon Adventure:, "Operation Satellite Sniper" 
- ADVENTURE:」Agumon and Taichi Epic Evolution! Metalgreymon: Alteros Mode
- 渡辺けんじ (@jinke_jinke). "メタルグレイモンの右腕が…瘴気にあてられつつも、その力を利用して変化！デザインはメタグレXウィルスの腕をアニメ用にリデザイン。攻撃はレールガンぽくなったらいいなと…剣として使ってもいいのよ。 #デジモン #デジモンアドベンチャー" October 25, 2020, 1:36 AM. Tweet.
- SHODO DIGIMON
- Digimon Adventure: