Ware wa meshia nari! (I am the Messiah)
~ Omega

Omega is a massive Reploid created during the four years of the Elf Wars. He is Dr. Weil's greatest creation and was made to be the perfect ruler, namely by storing and utilizing the Dark Elf in order to mass-control Reploids remotely, thus preventing them from becoming Mavericks. Although seeming only to be a servant of Weil, this is proven false by Weil himself at the end of the game revealing him to be a god. He plays a major role in Mega Man Zero 3 as the secondary antagonist and also appears as a secret boss in Mega Man ZX. Despite only appearing in one game in the series, he is the secondary antagonist of the Mega Man Zero series as a whole as what he does sets up the plot a century before the series itself begins.



Before the start of the Elf Wars, the Maverick Hunters were trying to find a way to counter the Sigma Virus. Zero, after discovering that his own body was leaking the virus, offered his body for research. The body was put under hibernation, and his memory chip was removed and put in a new body. Two renowned scientists, one of them being Dr. Weil, successfully created the Mother Elf, whose code was able to counter the virus. With this the Maverick Wars was finally over. However, Dr. Weil was unsatisfied with the result, as he believed the reploids should be punished for all the wars they waged. By analyzing the body of Zero, Dr. Weil discovered his true nature, that Zero's true purpose was to be a machine of destruction. He reprograms Zero's body, turning him into Omega, who would be his messiah for his new order. He takes the Mother Elf and “curses” her by inserting the Sigma Virus on her, turning her into the Dark Elf. With the combined powers of Omega and the Dark Elf, he was able to take control over every reploid on the world, thus starting the Elf Wars. Omega alone wiped out most of the humans and reploids on the planet, leaving a wasteland behind. X and Zero fought Omega, and after a fierce battle, managed to defeat him with a combined attack. Omega was imprisoned on a ship and set to outer space, while X took upon himself the duty of guarding the Dark Elf. Weil was put in a mechanical body that regenerated him, condemned to live forever on the wasteland he created.

Confronting the X Guardians

Centuries later, the reploid Elpizo releases the Dark Elf. Weil was waiting for this moment, so he took action immediately. Some time later, the ship with Omega felt back on Earth, so Weil went there to reclaim his seeming puppet. The X Guardians and Zero also arrive at the place.

Confronting Zero

Zero finds Omega, who is beating the three guardians with little effort. Zero fights with Omega, who doesn't seems to be sustaining damage. Harpuia helps him, but then Weil appears, along with Copy X, whom he reconstructed. Weil challenges Zero to get the Dark Elf before him. The elf is spotted on a residential area, so Copy X sends a rocket with Omega aboard to get it.

Absorbing the Dark Elf

Omega (2nd Form)

Omega's Second Form.

After the rocket crashes, Omega absorbs the Dark Elf, thus resuming Weil's plans. After Zero fights Copy X, the latter explodes, because Weil had planted a bomb on him. Weil assumes control over Neo Arcadia as ruler of the humans with Omega as the true ruler of the reploids, replacing Copy X, and Zero goes after him, finds Omega and once again fights him.

Rematching Zero

Omega (Fusion)

Omega Fusion

Weil alerts Zero about Omega's true nature and his own. Omega morphs into a gigantic robot, while the place they were in starts falling down. Zero destroys this form, and when they hit the ground, he finally sees Omega's true form, discovering that Omega is his true body, and his most powerful form of all. Zero asks why the original Zero is Weil's slave, before Weil reveals that Omega is not his servant at all, but a bloodthirsty God of destruction, and all Weil did was draw his power out to its extent.

Zero vs. Omega Zero

Omega (True Form)

Omega's True Form.

Zero fights him once again in the toughest battle yet, and takes the Dark Elf out of his body. The Elf, now freed from his curse, uses his power to paralyze Omega, but Weil taunts Zero about destroying his true body. The X Guardians arrive at the place and attack Omega, getting their own share of revenge on him. The Cyber Elf X also appears, encouraging Zero to finish him. Zero, with a single strike, destroys Omega, but the ensuing explosion takes X and the Guardians. Zero is saved by the Mother Elf, who carries him back to the resistance base.


  • O-Saber - stronger version of the Z-Saber
  • O-Buster - stronger version of the Z-Buster
  • Dark Elf's powers
  • O-Knuckle - stronger version of the Z-Knuckles


Mega Man Villains
Mega Man Classic

Bass | Copy Mega Man | Devil Series | Doc Robot | Dr. Cossack | Dr. Wily | Evil Energy | Evil Robot | Gamma | Genesis Unit | King | Mega Man Killers | Ra Moon | Robot Masters | Stardroids | Sunstar | Terra | Treble

Robot Masters

Air Man | Aqua Man | Astro Man | Blade Man | Blizzard Man | Bomb Man | Bright Man | Bubble Man | Burner Man | Burst Man | Charge Man | Centaur Man | Chill Man | Cloud Man | Clown Man | Cold Man | Commando Man | Concrete Man | Crash Man | Cut Man | Crystal Man | Dark Man | Dive Man | Drill Man | Dust Man | Dynamo Man | Elec Man | Fake Man | Fire Man | Flame Man | Flash Man | Freeze Man | Frost Man | Galaxy Man | Gemini Man | Gravity Man | Grenade Man | Ground Man | Guts Man | Gyro Man | Heat Man | Hard Man | Hornet Man | Ice Man | Jewel Man | Junk Man | Knight Man | Magic Man | Magma Man | Magnet Man | Metal Man | Napalm Man | Needle Man | Nitro Man | Oil Man | Pharaoh Man | Pirate Man | Plant Man | Plug Man | Pump Man | Quick Man | Ring Man | Search Man | Shade Man | Shadow Man | Sheep Man | Skull Man | Slash Man | Snake Man | Solar Man | Spark Man | Splash Woman | Spring Man | Star Man | Stone Man | Strike Man | Sword Man | Tengu Man | Time Man | Toad Man | Tomahawk Man | Top Man | Tornado Man | Turbo Man | Wave Man | Wind Man | Wood Man | Yamato Man

Mega Man X

Berkana | Bit | Byte | Colonel | Colonel Redips | Double | Dr. Doppler | Dynamo | Epsilon | Gate | General | High Max | Isoc | Lumine | Mavericks | Mechaniloids | Nightmare Phenomenon | Red | Red Alert Syndicate | Repliforce | Sigma | Vile | X Hunters


Armored Armadillo | Avalanche Yeti | Axle the Red | Bamboo Pandamonium | Blast Hornet | Blaze Heatnix | Blizzard Buffalo | Blizzard Wolfgang | Boomer Kuwanger | Botos | Bubble Crab | Burn Rooster | Chill Penguin | Commander Yammark | Crush Crawfish | Crystal Snail | Cyber Peacock | Dark Dizzy | Dark Mantis | Dr. Psyche | Duff McWhalen | Earthrock Trilobyte | Ferham | Flame Hyenard | Flame Mammoth | Flame Stag | Frost Walrus | Gigavolt Man-O-War | Gravity Beetle | Grizzly Slash | Ground Scaravich | Gravity Antonion | Gravity Beetle | Incentas | Infinity Mijinion | Izzy Glow | Jet Stingray | Launch Octopus | Mach Jentra | Magna Centipede | Magma Dragoon | Mattrex | Metal Shark Player | Morph Moth | Neon Tiger | Optic Sunflower | Overdrive Ostrich | Rainy Turtloid | Ride Boarski | Scarface | Shield Sheldon | Silver Horn | Slash Beast | Snipe Anteator | Soldier Stonekong | Spark Mandrill | Splash Warfly | Split Mushroom | Sting Chameleon | Storm Eagle | Storm Owl | Squid Adler | Sting Chameleon | The Skiver | Tornado Tonion | Toxic Seahorse | Tunnel Rhino | Vanquishing Gungaroo | Volt Catfish | Web Spider | Wheel Gator | Wild Jango | Wind Crowrang | Wire Sponge

Mega Man Zero

Anubis Necromancess the Third | Aztec Falcon | Blazin' Flizzard | Blizzack Stagroff | Burble Hekelot | Childre Inarabitta | Copy X | Crea & Prea | Cubit Foxtar | Dark Elf | Deathtanz Mantisk | Devilbat Schilt | Dr. Weil | Elpizo | Fefnir | Fenri Lunaedge | Four Guardians | Glacier Le Cactank | Hanumachine | Heat Genblen | Herculios Anchus | Hyleg Ourobockle | Kuwagusta Anchus | Maha Ganeshariff | Mino Magnus | Noble Mandrago | Omega | Panther Fauclaws | Pegasolta Eclair | Phoenix Magnion | Poler Kamrous | Popla Cocapetri | Sol Titanion | Tech Kraken | Tretista Kelverian | Volteel Biblio

Mega Man ZX

Aeolus | Argoyle & Ugoyle | Atlas | Bifrost | Buckfire | Fistleo | Flammole | Hedgeshock | Hivolt | Hurricaune | Leganchor | Lurerre | Master Albert | Model W | Pseudoroids | Queenbee | Rospark | Serpent | Siarnaq | Thetis

Mega Man Legends

Bonne Family | Birdbots | Bola | Glyde Loathe | Klaymoor | Lex Loathe | Megaman Juno | Mistress Sera | Reaverbots | Servbots |

Mega Man Battle Network

AirMan.EXE | Bass.EXE | BeastMan.EXE | BlastMan.EXE | BlizzardMan.EXE | BowlMan.EXE | BrightMan.EXE | BubbleMan.EXE | BurnerMan.EXE | CircusMan.EXE | CloudMan.EXE | ColdMan.EXE | ColorMan.EXE | CosmoMan.EXE | CutMan.EXE | Cybeasts | Dark MegaMan.EXE | Dark ProtoMan.EXE | DesertMan.EXE | DiveMan.EXE | Duo.EXE | DrillMan.EXE | ElecMan.EXE | ElementMan.EXE | FireMan.EXE | FlashMan.EXE | FreezeMan.EXE | GravityMan.EXE | HeatMan.EXE | JudgeMan.EXE | KnightMan.EXE | LarkMan.EXE | Lord Wily | MagicMan.EXE | MagnetMan.EXE | Net Mafia Gospel | PlantMan.EXE | PharaohMan.EXE | QuickMan.EXE | ShadeMan.EXE | SparkMan.EXE | StarMan.EXE | StoneMan.EXE | SwordMan.EXE | VideoMan.EXE | World Three

Mega Man Star Force

Andromeda | Cepheus | Crimson Dragon | Dr. Regal | Le Mu | Mr. King | Patrick Sprigs


Constellation Droids | Dimensions | Dr. Wily (Mega Man Fan Film) | Dr. Wily (Mega Man TV Series) | Origami Man | Proto Man | R-Shadow | Robosaur Park Dinosaurs | Slur | Vespor Woman