The sentient Ultimate Echo Echo looks just like Ultimate Echo Echo, except he has red eyes and lacks the evolved Ultimatrix symbol on his chest.
Powers and Abilities
The sentient Ultimate Echo Echo has all the powers Ultimate Echo Echo has.
In The Ultimate Sacrifice, the sentient Ultimate Echo Echo, along with the other Ultimates (apart from Ultimate Wildmutt and Ultimate Way Big), convinced Ben to commit suicide so that they could be free. Ben tried to, but was stopped by Azmuth. They were freed by him and sent to a planet where they could live in peace.
Ben 10: Ultimate Alien
- The Ultimate Sacrifice (first appearance)