Alien Species

In the various Sonic the Hedgehog continuities, there are several instances where the characters encounter extraterrestrial life.

Black Arms


The Black Arms, essentially the darkest and most powerful of the aliens mentioned. They appeared in the game Shadow the Hedgehog as the primary enemies or allies, depending on the player's path. Their leader is called Black Doom, who is a Black Arm that floats, wears a brown coat and has celestial charms all over him. When they first appear, there is no explanation, the player soon learns that they came for the Chaos Emeralds. The Black Arms appear to have their own technology which revolves around guns (that can range from crude to seemingly expertly crafted) that emit purple, fatal laser beams (with the exception of one, which shoots worms.) The Black Arms (or, rather, Black Doom, as he's the only one that can talk) claim that they have come to save humanity from itself, but their true intentions are more parasitic in nature.

The Black Arms also appear in the Archie-published Sonic the Hedgehog comics, where they entered into a war with the Xorda. Their role is essentially the same as it is in the game, and Shadow was created to protect Mobius from them.

Babylonians
The Babylonians are the ancestors of the Babylon Rouges. They were either an avian race or as time on Earth went by became a mixbreed and melting pot of the different birds of Earth. The Babylonians original home is unknown but there vessel crashed on Earth when they ejected the ships engines. The Babylonians made there home Babylon Garden from there ship which landed in the desert beyond Sand Ruins/Dark Desert. It became a society of thieves known as the Babylon Rouges. It was because of there crimes they incurred the wrath of the Gods which cast Babylon Garden into the depths of the earth.

Babylonians were treasure hunters by nature and flew across the world collecting (taking or stealing) various treasure. The pinnacle of there technology was the invention of magic carpets which were actually air-powered vehicles used for gathering treasure. These vehicles are predecessors of Extreme Gear today.

The earliest known Babylonian is Stolen who is the 13th leader of the Babylon Rouges. Perhaps not a pureblood Babylonian but was present during the creation of Extreme Gear. When the gear wa sinvented before or after the wrath of the Gods is unknown but Stolen had this treasure safe guarded in the underground Babylon Gardens.

The Zoah
The Zoah are a race of aliens that were at the height of their power when they, along with the Kron, N'rrgal and the Voxai, were transported to the Twilight Cage by a mysterious force. The species is known for its love of warfare and desire to rule all others. They are now trying to conquer their most hated enemies, the N'rrgal, who still resist them.

They appear in Sonic Chronicles: The Dark Brotherhood.

Kron
The Kron, like the Zoah were once species bent on domination of other races but during their time spent in the Twlight Cage they have become more passive in nature. They have a unique speech pattern that may be seen as a bit messed up with all first or third-person words coming in later then it should, example instead of saying "He is not seeing visitors" they will say "Not seeing visitors he" or instead of "since you stopped the pirates" it will be "since stopped you the pirates".

The Kron are all well-known for high mining and construction abilities.

N'rrgal
The N'rrgal are a race of slime-like slugs that are akin to a colony of ants following one Queen. They are the enemies of the Zoah.

The Voxai
The Voxai are a race of telepathic aliens, that appear to be a cross between a manta ray and a jelly fish. They are ruled by three Voxai known as the Overmind who give telepathic demands to the Voxai. The Overmind lives on Voxai colony Alpha, whilst the Voxai live on Voxai colony Beta.

Wisps
Wisps are a race of cephelopods that were captured by Dr. Eggman in the up-coming game, ''Sonic Colors. Sonic can use their "Color Power" ''to temporarily give him new abilities.

Seedrians
Seedrians is a fan term for a species of plant-like aliens who have evolved to assume sentience and more animalistic forms that appear in the Sonic X series. Male Seedrians, referred to by the fans as Thorndrigans, are slightly larger than most of the inhabitants of Sonic's world, and are usually rather round, with short tails, small antler-like growths on their heads, and a colored ridge on the top of their heads; they are largely similar to trees in their make-up. Female Seedrians, or Petali, more closely resemble their plant ancestors, being mostly slender and having an arrangement of petals sprouting from their waists and buds--or bloomed flowers--atop their heads. Apparently Seedrians evolve into trees at some point in their lifetimes, perhaps a first stage of death or old age. However, Hertia invented a crystal which prevent going to final phase.

For untold years, the Seedrians were locked in a war against a mysterious foe. In an effort to combat them, all the known males joined forces under the command of a renegade scientist named Lucas and willed themselves to undergo unnatural evolution, becoming bestial giant versions of their former selves. However, the evolution process was unstable, and in many cases fatal. Stealing their own world's Planet Egg, they used its power to stabilize the evolution process. Finally, after many died count latest Starla's lover, the planet's leader Hertia, devastated at what they had become, decreed that they would have to leave planet Green Gate to survive and abandoned her world and her mutated comrades to destruction by their enemies. Since this enemy is never revealed, it is a constant focus of fan fiction. The most common belief is that it was the Black Arms mentioned above.

However, this caused dissension, as the male Seedrians, now known by the term Beasts, were unwilling to abandon the fight. They continued to do battle until only five Beasts, including Lucas, remained alive, those who were to become Dark Oak and his henchmen through a finishing phase of their evolution and became the leaders of the Metarex. A mass number of the females however, had escaped into space with Hertia, creating a colony upon which Hertia's last daughter, and possibly the last child of the Seedrians, Cosmo, was born. Determined to rid the universe of all non-plant life, and to have revenge on their former colleagues, they hunted down and attacked the ship carrying the surviving females, all but exterminating them.

The ship was destroyed, leaving only six known specimens of the Seedrian race alive: Lucas, reborn as Metarex leader Dark Oak; his commanders Red Pine, Yellow Zelkova, Black Narcissus, and Pale Bay Leaf; and Hertia's daughter Cosmo.

Trivia

 * The Seedrians bear a great resemblance to the Pokémon Ralts, Gardevoir, and especially Kirlia. In fact, certain Pokémon fans who are not familiar with the Third Season of Sonic X tend to confuse the female Seedrians as "probably fan-altered" forms of the mentioned Pokémon.


 * The Seedrians also bare a great resemblance to the creatures from "Maginary World", a dreamworld in Sonic Shuffle. For example, Void highly resembles Cosmo. This could simply be a coincidence or an attempt to bring back Void's people to the show, and it is even possible that the two are somehow related, although this is highly unlikely.
 * Because they are plant-like creatures,it is possible that the Seedrians can be reborn. In the 4kids version, Cosmo lets Tails know of this fact before she was killed.

Metarex
The Metarex are an alien race of bio-robots. The five most powerful and high ranking Metarex, Dark Oak and his commanders, are actually the only suriving male Seedrians. Desiring the power to unlock transformations that would enable them to defeat their enemies, they stole energy from their home world's Planet Egg and were transformed. From that point on, the Metarex sought to achieve domination by destroying all animal life in the universe, allowing plants to rule over all.

Marmolimians
The Marmolimians are aliens that hail from the Planet Marmolim. They resemble short creatures with heads either being round, or shaped like a chao's head, or like a stretched out chao head. They also have little tufts of hair on thier head. The Marmolimians are appearently religious and use magic spell like charms a lot in love and fortune telling. They have appeared only in episode 69 of Sonic X and have been somewhat of a help with Tails and Cosmo's relationship. Marmolimians also have meteor like ships. They also use a coin based currency called Fleebos. Four marmolimians who actually have names were a crew on a ship of thier's named Lu, Leela, and Momo, and a spiritual elder named Gana.

Bem
A scientist race from the Archie-published comics, the Bem all appear to be identical females, possibly due to cloning. The Bem travel the galaxy, and on several occasions their journeys have brought them to Mobius. The Bem recovered Shadow the Hedgehog from falling into the atmosphere, restoring him to health and giving him the energy to achieve Super Shadow to hold off the Xorda while they escaped. Later on, Sonic visited the Bem planet of Argentium, also known as Wheel World, where he found Amadeus and Rosemary Prower. Sonic eventually used a Bem wormhole to return to Mobius, finally ending the banishment imposed on him by the explosion of the Quantum Dial. Under the impression that Sonic was a renegade Bem, but unwilling to pursue his one-seater ship into Xorda space, the Bem allowed him to escape. Some time later, Sonic returned to Wheel World with Knuckles and Tails to find it in ruins with the Xorda and the Black Arms fighting in orbit.

The most prominent of the Bem is Ceneca 9009, the first scientist to develop a De-Roboticizer, also referred to as the Robotizer.

Xorda
A highly aggressive alien race who attacked Mobius when it was still known as Earth. As a result of their bombardment, ordinary animals were transformed into Mobians. Upon learning that the planet still had life, they returned and attempted to destroy the planet. Thanks to Sonic and an alliance of every fighting species of the planet, their efforts were thwarted.

While they might have become aware of Mobius' survival, the Xorda have since become locked in battle with the Black Arms.

Others

 * Bzzzz

The Drakon
A race of warlike aliens appearing in the UK publication Sonic the Comic, the Drakon are a race of technologically advanced fish-like aliens that evolved on the extra-dimensional planet Drak and used their scientific prowess to design and build armoured suits that provided mobility. In ancient times, they waged a war with the ancient Echidna race led by Pachacamac for possession of the Chaos Emeralds, but were eventually defeated by unknown methods and driven away. They presumably spent the next eight millenia conquering their own dimension before they encountered Dr. Robotnik, who convinced them that Sonic was a criminal who had to be brought to trial. This would lead to several clashes between Sonic and the Drakon Empire, who were eventually double-crossed by Robotnik and sent back to their own universe.

Others

 * Tantaror
 * Insectra Empire
 * Blurrgh
 * Kaamdaarn