Scourge the Hedgehog, Mobius Encyclopaedia

This character only existed in the Pre-Super Genesis Wave Timeline and was wiped out by the first Genesis Wave. Scourge the Hedgehog (formerly known as Anti-Sonic or Evil Sonic) was an evil version of Sonic the Hedgehog from Moebius. Unlike Sonic, Scourge mistreated others, was selfish and greedy, and had a great desire for power. Originally, Scourge, like all other alternate versions of Sonic Prime, looked identical to him, differing only in personality and attire. All this changed when Scourge

Scourge the Hedgehog, Mobius Encyclopaedia

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STH: TLA Page 3 by Goddess9Rouge on DeviantArt