Battledome
From Ratchet & Clank wiki
The Battledome was the DreadZone Station's arena, where most of the battles on DreadZone took place. Three of the Exterminators died in the Dome, as well as DreadZone's founder, Gleeman Vox. It was completely destroyed when Vox blew up the DreadZone Station in a failed attempt to kill Ratchet, who had defeated all four of Vox's acclaimed Exterminators.
