etton appeared in the series finale of Ultraman: The Ultimate Hero, as Powered Zetton.

In this series, Zetton was a machine created by Alien Baltan to kill Ultraman Powered but was left dormant until he was awoken by another experiment by the Baltans, Dorako. Shortly after Dorako was destroyed, Zetton came to earth and attacked WINR's base (Much like how the original Zetton attacked the Science Patrol's HQ.) The Military soon arrived to assist WINR, but none of their weapons was enough to even harm the super weapon, who destroyed everything in his sights. Powered revived without Kenichi Kai as his host and tried to fight back only to be battered around by Zetton too. Finally after tricking Zetton into turning his back, Powered found an opening and destroyed Zetton with a Mega Spacium Beam to his back, but at the cost of his own life from using up all of his own energy.