Chimera Sui Generis

The Chimera Sui Generises, also known as Chimerans or Vilgaxians, are a species from the planet Vilgaxia.

Anatomy
The Chimera Sui Generises were green skinned humanoid aliens with long squid like tendrils on their heads. Most females have them on their head, while males have them on their chin or all around their head to resemble hair or beards, respectively.

Powers/Abilities
Chimeras have incredible strength, being able to defeat Tetramands and Vaxasaurians with a single punch, break free from Lepidopterran goo, stop an Arburian Pelarota in sphere form, and lift a Cascan.

Chimerans possess enhanced durability, easily withstanding a Crystalsapien's lasers, a Methanosian's fire blasts, and even an intense heatwave generated by a Pyronite without visible damage. Similarly, their durability can make Petrosapiens shatter their own fists.

Chimerans possess enhanced reflexes and agility, being able to stop a Kineceleran at full-speed.

Chimerans are possibly quite intelligent, as Myaxx was one of Azmuth's assistants and helped him make the Omnitrix and the cloaking field for Xenon. Meanwhile, Vilgax displays high levels of expertise with the Omnitrix and has vast army of drones that he may have built himself.

Certain Chimerans can shapeshift their arms into powerful tentacles and project powerful laser beams, which can burn Ectonurites and catch up with a Kineceleran, from their eyes.

Chimerans can to speak to and through their own DNA, which was how Vilgax could talk to Upgrade when he was merged with Rojo.

Vilgax, the most notable Chimeran Sui Generis featured on-screen, has displayed abilities that other Chimerans are not yet confirmed to possess including:
 * transforming into a large octopus-like creature, which he referrers to as his true form, while underwater.
 * being immune to radiation, as he can safely pass through a planet's atmosphere.
 * surviving in the vacuum of space, though he used to condition himself to do so without protective gear for brief moments.
 * flying at superhuman speeds.
 * breathing powerful cyclones from his mouth.
 * hearing sounds that are too faint for normal hearing to detect.

Weaknesses
Chimeran may have problems changing from a giant octopus into their conventional humanoid form if severely weakened. They also need to be in water-based environments while in this form.

Chimerans are vulnerable to an Earth cold.

A Chimeran's optical lasers can be absorbed by an energy-absorbing species, such as a Fulmini.

As stated by Myaxx, Chimerans are not natural built for space, meaning that they need oxygen to breath.

There is a limit to how much damage a Chimeran can take, as they are vulnerable to electricity and Omni-Enhanced energy.

Despite his skills on the battlefield, Vilgax can be defeated by the element of surprise.

Omnitrix Transformation
The Omnitrix's Chimera Sui Generis representative was Gax, who first appears in Omni-Tricked Part 1.

The Omnitrix from the original Ben 10 continuity contains Chimera Sui Generis DNA obtained from Vilgax. However, Ben Tennyson was unable to discover this form because the power surge on the Chimerian Hammer removed the DNA sample from the Omnitrix during the original series episode Secrets. While Ben wore the original Ultimatrix, it did not contain Chimeran Sui Generis DNA.