Mighty Omega is one of the main Digimon character in "Digimon : The Golden Digivice".
| Mighty Omega|
|Appears in:||The Golden Digivice|
Mighty Omega is a very cold and reserved WarGreymon. He is also very chivalrous and protective and will defend his Tamer even if he risks his own life. He considers Cursed Omega, his teammate, as a weak Digimon because he prefers to play with tiny Digimon than fight for Hans.
- Terra Force: Gathers all of the energy within the atmosphere and concentrates it into one spot, then fires it as an extremely dense, high-temperature fireball energy shot.
- Great Tornado: Spins at tremendous speed like a tornado and launches itself at the enemy.
- Brave Shield: Uses its "Brave Shield" to defend.
- Mega Claw: Slashes its "Dramon Killer" gauntlets.
During the story, Mighty Omega digivolves to his Mega form, Omnimon. He also degenerates to Greymon and MetalGreymon.
Greymon is WarGreymon's Champion form. He takes that form when he very weakened.
- Horn Impulse: Attacks the opponent with its horns.
- Tail Crash: Slams its tail into the opponent.
- Nova Blast: Spews ultra-high-temperature flames or a flame shot from its mouth to reduce everything to ashes.
MetalGreymon is WarGreymon's Ultimate form.
- 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.
- 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.
Omnimon is WarGreymon's Mega form.
- Supreme Cannon: Freezes the opponent with frigid, absolute zero shots that it fires from the "Garuru Cannon".
- Transcendent Sword: Slashes with the invincible "Grey Sword".
- Double Shot: Annihilates the opponent with successive shots of fire and ice from the WarGreymon and MetalGarurumon heads.