-Unless otherwise noted, the Omnitrix emblem always appears center-mass, around the chest area. The pre-calibration glitch in the Omnitrix is a severe altering of attitude and behavior.
Alien Name: Phantom
Species: Vesuthan
Endlessly caught in wartime, this alien species naturally augments itself with armor and combat implants. They are often at odds with other races because of their behavior towards them; a natural suspicion due to their race being assaulted by multiple hostile alien races. As such, they have adapted themselves as advanced combatants, and aren't fit for doing much else. A Vesuthan mercenary goes for a pretty penny, in the underworlds.
Appearance:
http://mcpunky.deviantart.com/art/Vesuthan-Soldier-174070529
Home Planet: Vesuth
Abilities:
This alien species naturally augments itself with armor and combat implants, reflected in this transformation. This allows them, primarily, to project plasma energy from their limbs. Phantom can use this energy as a short-range burst, constrain it as an energy baton, or spew it as a jet. This is not limited to any particular limb, giving Phantom options such as assisted jumps, limited hovering, and kick-based combat. Phantom is a glass cannon, capable of dealing brutal, relentless damage, but not really taking it well.
Alien Name: Buzzfang
Species: Kerriech
This alien was actually once a subspecies of a greater insectoid race, with this specific alien being a sort of drone. Their natural armor, excellent flying ability, and greater knowledge of combat allows them to be mighty aerial soldiers. The Kerriech's flying ability is their primary strength, and without it, they appear to be literally powerless, as if they cannot live without flight.
Appearance:
http://adamroush.deviantart.com/art/Bugman-473967894
Home Planet:
Abilities:
Between this alien's naturally armored carapace and insectoid wings, Buzzfang is an aerial pest by all means of the term. His wings allow for hovering flight, along with large bursts of speed. This combines with his hard armoring to allow for some sharp blows, if not always particularly heavy ones. The armoring also means it is difficult to damage Buzzfang, but it is not hard at all to stun him or knock him asunder. Restraining or disabling his wings is the easiest way to defeat him in all senses of the term.
Alien Name: Knucklehead
Species: Cephi
Found as one of the primary species on a faraway planet. While first observed to be feral, it was discovered that the Cephi did indeed have a level of sentient intelligence, akin to a primitive human. It had been observed to cope well with assimilation with other galactic races and their technology, but that is because of their natural means of coping with such things: they literally don't think about it. At all. That being said, they're good for heavy lifting and other manual labor.
Appearance:
http://zachsmithson.deviantart.com/art/Cephi-creature-concept-361552830
Home Planet: Tuon-4
Abilities:
A fearsome creature rippling with hardened muscle. Evolved from a quadruped alien, Knucklehead has two sets of arms: the larger pair may act as 'forelegs', while the smaller pair is used for handling smaller, more delicate things. The claws, arms, teeth and tail are all for mauling and brutalizing opponents, though they do just as well for intimidation. Those transformed into Knucklehead also inherit his lack of critical thinking.
Alien Name: Hiveminer
Species: Manterra Ka-al
A traditional sort of insectoid with a bipedal constitution. The arms are shaped in such a manner that makes these aliens especially adept at digging and hauling ground. Their two nerve receptor on their forehead, where antennae would be, grant a sort of premonition that serves as a danger sense.
Appearance:
http://zarnala.deviantart.com/art/KA-Al-Worker-concpet-404196042
Home Planet: PT-6 Delta
Abilities:
A very adept digger, able to tunnel through soft earth like a hyperactive machine. The arms are strong and stiff enough to break rock and lift boulders. The insectoid legs are also good for scaling many surfaces. Something to note is that Hiveminer's incredible stopping power and strength against the earth only functions best against the earth. He would have a harder time lifting a steel crate then a stone boulder of the same size and weight.
Alien Name: Geller
Species: Axonite
Formerly from a beautiful, entirely aquatic planet, these aliens akin to jellyfish gained a sentience without very many conventional senses. They have a sort of mental vision, consisting of sending powerful mind waves to precept the environment, in a hyper-advanced form of echolocation. Communication has been achieved through a similar medium. After the destruction of their planet due to pollution and space debris, they have manged to evolve to gain a form of telekinetic locomotion outside of an aquatic environment.
Appearance: The Omnitrix emblem appears on its 'head'.
http://rubisko.deviantart.com/art/The-Axonite-of-Earth-26486532
Home Planet: N/A
Abilities:
Telepathy and self-telekinetics are but the basics of this lifeform. Geller can maintain a limited sort of telekinesis on a single object, about no massive than a crate. It can also use this mental force as a barrier, repulsing kinetic force away from itself. If all else isn't an option, Geller can, of course, use its tentacles to slap or constrict foes. Out of water, Geller must sort of float to move around slowly, but it is far more mobile in aquatic or zero-gravity environments, where it can manually propel itself with ease. One of the few aliens Lyle retains most of his personality within.
Alien Name: Electralight
Species: Gansect
This alien evolved in almost no light, its home planet orbiting an unborn sun. The only forms of light came from within, as a sort of bio-electricity produced in excess. The fact that such a species is able to exist in such conditions is an evolutionary wonder, though some suspect some form of intervention in the Gansect's growth.
Appearance:
http://static-ghost.deviantart.com/art/Thunderstorm-299306435
Home Planet: XV-219
Abilities:
Electralight's arms and claw-like projections all act as electric conductors, mostly for its internal source of bio-electricity. By combining the efforts of several of the conductors, he can create bolts of lighting of varying degrees of strength. He can also 'see' in absolute darkness due to his physiology. This transformation is easy to tire oneself out in if too much energy is expelled and not recovered. Regardless, this alien is tenacious and generous with his abilities.
Alien Name: Quicksilver
Species: Taira-Karai
Nobody is really sure where this alien came from. All attempts to trace its origins have been unsuccessful. The lack of gender, and the strange metallic composition, suggests this could be an artificial creature, raising yet more questions of this enigma. It was apparently created for battle, as most every aspect of this alien is sharpened dangerously.
Appearance:
http://static-ghost.deviantart.com/art/Silver-blade-302354032
Home Planet: N/A
Abilities:
The iteration of the Taira-Karai recorded in the Omnitrix is notably more dulled than the actual alien, so as to preserve some medium of safety. Regardless, it is still very dangerous; the tail, 'wings', claws - pretty much everything on this alien is an edge, making the entirely of Quicksilver a medium of harm. As expected of a metallic alien, too, it is difficult to penetrate at all, safety of it notwithstanding. Speaking in a voice as silvery and metallic as it is, this alien seems to portray an edgy, unwanted extreme in Lyle's nature.
Alien Name: Sturmvoid
Species: Fremde
These aliens are a species of invaders, it seems. It is doubtful if they are even native to this dimension; their natural creation of wormholes and dark energy manipulation would say otherwise. Many aliens who have witnessed these creatures claim they are of demonic origin, though such things are superstition at best. It would seem they are a sort of a hivemind, as after the capture and banishment of their tyrannical leader to the Null Void, these aliens disappeared into obscurity. Only a few remain, in captivity, dormant, as if waiting for something...
Appearance: The Omnitrix emblem appears on the left arm, where the armband appears.
http://undeadkitty13.deviantart.com/art/Fremde-286223860
Home Planet: Unknown
Abilities:
Blacksturm's form is quite formidable on its own, but his power comes from his manipulation of dark energy. With this, he can create medium-range wormholes from which he can launch himself or his limbs through, or entangle enemies temporarily. Blacksturm's most fearsome ability extends its skull-like emblem like a specter to possess another creature, using it as a puppet for its powers while leaving the original body as a simple, mind-linked drone. Speech is very limited in this form; communication is best facilitated through a possessed individual. For safety reasons, this alien's possession powers are locked down on other Omnitrix-formed aliens.
While Lyle's own consciousness is a dominant force again here, he still doesn't like the use of this alien. It just...
feels wrong.
Alien Name: Proxy
Species: Cyber-Wraith
Contrary to the name, these aliens are not necessarily evil or wrathful. Under all definitions, they are not even corporeal, their mechanical forms being but a medium of connection to our world. They are able to manipulate and access technology and data in in a bio-electric form, basic and complex at the same time. Their natural form is undocumented, and is apparently impossible for us to witness.
Appearance:
http://undeadkitty13.deviantart.com/art/Angel-289028455
Home Planet: Theta Prime
Abilities:
Proxy can naturally access any sort of electric device, manipulating it to his desires. He must be within several meters of such a device to access it, but once done so range of connection is technically unlimited. Proxy can project raw data in a holographic form, and his segmented body allows him to divide himself to avoid attacks or manipulate himself into any technology he has possessed. His primary weaknesses are those of a computer - viruses, electric overloads, and an excess of water can all disrupt his abilities, but not enough to cause actual harm, tahkns to the Omnitrix's own safeties. He must also have all of his body in order to use his abilities in full potential (and revert from the transformation!)
Alien Name: Ignis
Species: Satus
The Satus were never truly acknowledged as a friendly race. Their ability to naturally concoct fire like some ethereal energy is something they abuse heartily, even in concept. Tendencies of immolation and chaotic nature were never received well. The best you might find a Satus integrated into society is as a vagabond.
Appearance:
http://undeadkitty13.deviantart.com/art/Satus-293932127
Home Planet: Klepnir-1B
Abilities:
Natural fire creation and manipulation, the favorite form of which is explosive fireballs. He can use his spiked serpentine body to coil and stab at enemies. Though he can control and absorb fire, Ignis is not entirely fireproof, nor is he fond of extinguishing agents. This is by far the most bloodthirsty and violent of Lyle's aliens, and so he tries to refrain from using it if he can help it.