Uther's Lab

Uther's Lab is the location Uther usually can be found in. He usually either comes up with evil plans or stands guard at the radar across from the entrance.

Chronicles of Uther series
Uther's Lab, although not named, first appeared in the first movie; It was Kirby Air Ride's City Trial underground area where the Air Ride Machines could be found in Free Run, unchanged. Uther sometimes stopped in the area that in the later series would become the lab to tell the viewers about his annoyance with Arthas.

In World of Kirbycraft: The Mysterious Game Vol. 1, Wii came here during "Enemy Time", serving the same purpose Uther Time had in previous movies.

Mary's Magical Adventure
In Mary's Magical Adventure, Uther's Lab can be found at the same location in Hell City as the movies. It has a radar in the corner where Uther would go during the movies.