Atomix's Species

Atomix's Species are an unnamed race of biomechanical humanoids from an unknown planet in the Milky Way Galaxy.

Anatomy
This species are robotic in appearance and have green and white bodies, and large cylinders in their arms that are full of green liquid and bubble-like spheres.

Powers/Abilities
This species can create and manipulate atomic or nuclear energy using his hands. Fundamentally, they are walking nuclear reactors.

The way this species creates their nuclear blasts is by chanting "HAA-MEE-NA HAA-MEE-NA HAA-MEE-NA-HA!" It is not crucial for them to chant every attack, but doing so will focus an attack's power and cause substantially more damage.

Members of this species can activate the cylinders on their arms and chest to melt nearby objects, including an Evolved Arachnichimp's webbing.

This species is capable of flight and, as such, they can perform a flying ramming attack called the Fissile Whistle.

Members are strong enough to take out an Evolved Vaxasaurian with a single punch, and kick an object up nearly past a planet's atmosphere.

This species can generate a massive blast of energy dubbed "Nuclear Winner", which can easily knock out enemies.

Members of this species have hard bodies, giving them substantial protection against physical attacks. They can also produce nuclear energy shields for extra defense.

This species can generate an orb of nuclear energy called a Fusion Cuisine, which can burn up Ectonurites and greatly harm Vladats. The light generated by the orb is shown to be very bright, as everyone present gets blinded by it.

Weaknesses
This species is boundlessly overconfident and can cause a total meltdown.

The attacks generated by this species can have unintended side effects, such as devastating their surroundings.

This species can get tired after using up most of their energy in combat.

Omnitrix Transformation
The Omnitrix's representative for this species is named Atomix, who was confirmed to exist in the original series episode "Ken 10" before eventually appearing in the Omniverse episode "For a Few Brains More". Atomix solely appears in Omniverse.

Atomix has also been used by Ben 10,000 (albeit off-screen).