Citrakayah

Citrakyahs are feline-like aliens from the planet Chalybeas.

Physiology
Citrakyahs are cat-like humanoids with a black and blue color scheme. They have spikes on their hands and legs, and black mask-like fins around their eyes.

Powers/Abilities
Similar to Kinecelerans, Citrakayahs possess enhanced speed and can leave a blue trail when they run. They also possess enhanced reflexes and jumping.

Citrakayahs are fairly strong, able to carry human-sized aliens without losing any speed. According to Matt Wayne, Citrakayahs are physically stronger than Kinecelerans.

Weaknesses
Citrakyahs are not as good as Kinecelerans when it comes to controlling their speed. Stopping, for example, is difficult if they run too fast. It is also implied by Kevin Levin that Citrakayahs are not as fast as Kinecelerans.

If a smart and tactical opponent times their attack just right, then they will be able to stop a Citrakayah right in their tracks.

Omnitrix Transformation
The Omnitrix's Citrakayah representative is named Fasttrack, who first appeared in the Ultimate Alien episode "Basic Training". It is implied that he was originally unlocked off-screen prior to "Basic Training". Fasttrack solely appears in Ultimate Alien.

The Ben Tennyson of Dimension 23 has an equivalent of Fasttrack named Fastcat, who was confirmed to exist by Derrick J. Wyatt.

Fasttrack has also been used by Albedo.