From Sonic Retro

First seen: A Cosmic Call (2005)
Series: Sonic X
Members: Dark Oak, Black Narcissus, Pale Bay Leaf, Red Pine, Yellow Zelkova
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The Metarex is an army of robots from the TV series Sonic X. They are led by the super powerful alien cyborg known as Dark Oak.


The origins of the Metarex are mysterious, as are their motives. They have traversed the galaxy, stealing Planet Eggs and objects of power, leaving whole worlds dead or dying in their wake. Among their victims are Cosmo's people. They also implanted her with a hidden sensor, turning her into an unwilling spy. Among the members of the Metarex are four that are known as "The Four Kings". They consist of Black Narcissus, Pale Bay Leaf, Red Pine, and Yellow Zelkova. Each are only second to Dark Oak. The Metarex are incredibly powerful, able to outmatch Sonic and his allies (unless they have power-ups). There are multiple types, and they can appear in any environment.


The Metarex come from the planet Green Gate. The people of this world were at war and were beginning to die out. A group wanted to leave and find a new planet away from the battles. One of the members of this group rejected the notion of running away, his name is Lucas, but he would later rename himself as Dark Oak. Lucas took their world's Planet Egg for himself, killing all life around. He realized that using a Planet Egg would allow his species to survive, even if they mutate into their fatal "Mover Mode". By gathering more eggs from across the universe he could bring order to it all. This was the beginning of the Metarex.[1]

Dark Oak traveled to Sonic's World to take the seven Chaos Emeralds for his master plan. He battled Super Sonic and knew his odds of winning were slim, but in the fight Sonic sent the Emeralds across the galaxy to different worlds. The Metarax then began to gather them up.[2] Driven to madness by this point, the Metarex place fake Chaos Emeralds throughout the galaxy to create forests with no intelligent life left.[1] Sonic and Shadow were eventually able to defeat the Metarex, with the help of their own spy Cosmo. She sacrificed her life to bring Dark Oak's reign of terror to an end.[3]

Mechanical creations

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Sonic X characters
Main Sonic the Hedgehog (Super, Dark Super) | Chris Thorndyke | Miles "Tails" Prower | Knuckles the Echidna | Amy Rose | Cream the Rabbit | Dr. Eggman
Recurring Chuck Thorndyke | Nelson Thorndyke | Lindsey Thorndyke | Ella | Mr. Tanaka | Sam Speed | Decoe | Bocoe | Bokkun | Cheese | Rouge the Bat | Topaz | Mr. Stewart | Helen | Frances | Danny | Shadow the Hedgehog (Super) | Vector the Crocodile | Espio the Chameleon | Charmy Bee | Cosmo | Dark Oak
Others Hector Dragg | Officer Albright | Dr. Kai Narasu | Mayor of Station Square | President | Jerome Wise | Christina Cooper | Director of Central Intelligence | Scarlet Garcia | School Principal | Next | Albert Butler | Elmer Johnson | Hawk | Li Yan | King Boom Boo | Chao | Big the Cat | Froggy | Chaos | E-102 Gamma | ZERO | E-103 Delta | E-104 Epsilon | E-105 Zeta | Lily | Tikal | Pachacamac | Mr. Schmitz | Howard Watcher | Professor Gerald Robotnik | Maria Robotnik | Vanilla the Rabbit | Emerl | Miranda Curtis | Dr. Kim Bickley | Card Passer | Molly | Leon | Earthia | Galaxina | Landar | Daisy | Starla | Chrysanthemum | Black Narcissus | Pale Bay Leaf | Red Pine | Yellow Zelkova
Comic only El Gran Gordo | Milan Ramada
Groups Speed Team | G.U.N. | Chaotix | Metarex