The Omnitrix was originally invented by a Galvan named Azmuth, who’s one of the smartest beings in existence. Ben Tennyson first received the Omnitrix when he was 10 years old, and in the beginning, he could only access 10 alien forms.
Over time, Ben was able to access more and more aliens, and eventually, Azmuth gave Ben the Ultimatrix. This new device not only let Ben change into aliens, but also let him evolve aliens into their “ultimate” forms.
In Ben 10 Omniverse, Ben wields a newer version of the Omnitrix, as Azmuth reveals the original Omnitrix was still just a prototype. Using this new Omnitrix, Ben has turned into dozens of aliens, both new and old, and he’s always discovering new forms. Keep watching Ben 10 Omniverse on Saturdays at 9/8c for more awesome aliens.
Around the same time, the evil genius Dr. Psychobos invented a knock-off of the Omnitrix called the Nemetrix. It allows Khyber’s dog to turn into the natural predators of Ben’s Omnitrix aliens, giving Khyber the upper hand in most situations.
Which Omnitrix is your favorite?[cnce src="http://www.cartoonnetwork.com/forums/communityjs/780?forum=52&key=6bOJhU&threadID=70640" ]