Mobius Encyclopaedia
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The subject of this article appeared after the Super Genesis Wave.


Two Memories
This article is in need of being split into two articles according to continuity.
This article is on the area; you may be looking for the Sonic Underground alternate dimension.
Classic Coconuts fights Sonic

Sonic in battle at the Underground Zone.

Underground Zone is a region found on South Island. It's located mostly underground and consists of ground and lava.

History[]

Sonic and the S6 Squad[]

Sonic the Hedgehog engaged the Egg Antlion and the members of the Super Special Sonic Search & Smash Squad in the Underground Zone in order to rescue Breezie the Hedgehog, whom he believed to be their hostage. (StH: #268)

Background Information[]

  • Underground Zone was based on the level, Under Ground Zone, in the video game, Sonic the Hedgehog 2 (8-bit).
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