Character: terios the hedgehog

Terios the Hedgehog is the name of several concept designs for what would eventually become Shadow the Hedgehog. These early versions of Shadow resembles Sonic more closely, with longer, droopier quills and dark blue fur. His name is theorized to mean "reflection of", tying into him being a doppelganger of Sonic.

This design would later show up as a DLC skin for Shadow in Sonic X Shadow Generations.