Benzarro 10K looks like Benzarro but older and with no hair at all now. His shirt actually fits him now and otherwise he's the same(Except more creepier).
He still has the same primitive behavior and his behavior is pretty much the same as before.
It is still unknown when he appears. He still has the same background as Benzarro.
Powers and Abilities
In battle he relies on his Omnitrix. He still wields the Prototype Omnitrix as he was not smart enough to make a new Omnitrix and Azmuth did not give a new Omnitrix.