Each of the aliens that he transforms into has its own special power so Ben will choose which alien to turn into depending on the power that he needs for the particular situation.īen, Gwen and Max find themselves in many dangerous situations in their efforts to save the world. This Omnitrix attaches to Ben’s arm and this is what allows him to transform into the various aliens. Inside of this pod is a watch type machine known as the Omnitrix. At the beginning of the show Ben found a pod on the ground after storming off into the woods following an argument with Ben. Benjamin Tennyson is the young boy who protects the earth by transforming into different aliens to fight the ‘bad guys’.īen 10 Costume – Who is Ben 10 and Why Does Your Son Want to Be Him This Halloween?īen 10 show features three main characters being Ben Tennyson, Gwen Tennyson (his cousin) and Max Tennyson (their grandfather). If you have children then its quite possible that you have heard of Ben 10.