All of Ben Tennyson's original alien transformations were cool, but some were much more useful than others, like Heatblast and Upgrade.

After the Tennysons are attacked by a villainous, dimension-hopping Omni-alien known only as Alien X, they meet a parallel universe version of Max, who opens the door to hosting multiple Bens and ...

Five years later, 15-year-old Ben Tennyson chooses to once again put on the Omnitrix and discovers that it has recalibrated and can now transform him into 10 brand new aliens. Joined by his super ...

This entry in Cartoon Network's popular `Ben 10' franchise features the superhero exploring the quirky side of the alien underworld in a secret alien city. Although Ben's ready to work alone, Grandpa ...