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Gax (alternatively named Sucker Punch) is the Omnitrix's DNA sample of a Chimera Sui Generis from Vilgaxia.


Gax is a humanoid creature with a face resembling that of an octopus. He has tentacles dangling in the front of his face, like a beard. His skin is pale-green and he doesn't have a nose or visible ears. He has green eyes and wears a black, green and white armored suit and fingerless black and green gloves. He has white and green boots and white and black pads on his arms, with green spikes on it. His armor is spiked at the shoulder and arm pads. He has light green sacs on the sides of his head. He wears the Omnitrix symbol on his chest.

Powers and Abilities

Gax is very agile and has good hand-to-hand combat skills, and has enhanced durabilty, as Vilgax was able to survive an explosion at point-blank range before his enhancements. He is just slightly larger than the average human.

Gax has shapeshifting arms that can change into a bunch of tentacles (five on each arm). These tentacles are very powerful and retain equal strength to his arms as a whole.

Gax is demonstrated to be a very skilled climber, using his sharp claws to dig into the ground and can jump several times his own height.

Gax can hear sounds that are too faint for normal hearing to detect, has enhanced reflexes and can regrow his lost tentacles.

Gax can also transform into his true form, a giant octopus-like monster, in the ocean.


Gax is vulnerable to the cold virus and if Gax is in his true form and becomes too weak, he cannot change back into his humanoid form. He also needs to be in water in this form. However, Ben can just turn back to human form or change to another alien.





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