Zarizon is humanoid. His skin is black, and also in some spots, silver. He has Megalon-like drills for hands.
Zarizon battled Junichiro Iwaki, but was ultimately defeated.
Zarizon was the thirty-third kaiju to battle Greenman. Zarizon was originally just a Phantom sent to terrorize some children, but was changed by Maoh. The kids quickly called Greenman with the Green Calls, and a short battle underwent. Maoh then made Zarizon grow, and Greenman grew to fight him. Zarizon proved to be a worthy adversary by beating Greenman to the ground numerous times. He also showed off his mist ability; he took off one of his arm drills and fired black smoke from it. The first time, it only weakened Greenman, but Zarizon did it a second time which did more damage. The second spray was also able to mind control Greenman. The monster made Greenman throw trees and rocks at the children he was supposed to be protecting. Luckily, the kids didn't get hit and eventually used the Green Calls to make Greenman snap out of it. After that, Greenman beat Zarizon to the ground and used his Greenman Shock attack to finish the monster off.
Zarizon can take off one of his drill arms and spray a black mist from it. The mist is capable of mind controlling his enemies.
- Zarizon is the second monster in Go! Greenman to resemble a beetle, after Garameddon.
- Zarizon shares several traits with aliens from the Ultraman series, including Alien Baltan and Alien Mephilas.