|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.
Downunda's early history was most likely largely the same as its Mobius Prime counterpart's. The point of divergence was when Knuckles became corrupted by his chaos powers and decided to conquer Mobius. After the Sword of Acorns ended up on Downunda, Nack the Weasel successfully retrieved it from there. Shortly after, Knuckles, now having assumed the mantle of Enerjak, sunk Downunda.