Don’t get upset, but EX Zetton has yet to make a proper appearance outside the toy-line, advertisements, and various live stages shows he’s been heavily touring in. He might pop up in the new “Ultra Galaxy Legends” movie, but won’t be sure until either of us sees that film with our own eyes.
The final villain of “Ultra Galaxy NEO”, of whom EX Gomora and EX Red King had to team-up against was not EX Zetton, but a different character named The Armor of Darkness; an evil hallow thing that possess its wearers to the darkside, or empowers them if their equally as evil as it.
In the final episode, the spirit of the evil Reiblood went into the Armor and fully combined together as one whole being.
Zetton is still one bad dude, but the Armor of Darkness and Reiblood were considerably worse!