|This location exists primarily or exclusively within the Pre-Super Genesis Wave continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
When the Death Egg Mark 2 docked at the bunker during its flight across Mobius, Team Freedom took this opportunity to raid the ship and rescue Mecha Sally, with the aid of the Arctic Freedom Fighters, and they were later joined by Silver the Hedgehog. After fighting off the Egg SWATs guarding the place, the heroes used an underwater tunnel leading from the bunker to access the Death Egg Mark 2.
- This was the final new location to be revealed before the Post-Super Genesis Wave timeline.