Ben is a 10-year-old boy who has the Omnitrix, the most powerful weapon in the universe that enables him to transform into various aliens. He found it from a comet during his summer vacation with his cousin Gwen and his grandfather Max. Ben used the Omnitrix for entertainment many times, in addition to using it to help people،He is also obsessed with collecting Sumo Slammer cards،The Omnitrix is now attached to his arm and is part of his body،He was bullied at school by Cash and J.T before