Ben 10 wearing the Omnitrix on his wrist.[1]

The Omnitrix is the alien device that Ben Tennyson uses to transform into various alien lifeforms. It can give him a wide variety of abilities depending on the form he takes. One of the forms the device allows him to transform into is the Grey Matter.


Ben 10 and the Super Friends


  1. As seen in Ben 10 and the Super Friends.

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