Darkspine Sonic by Smores_the_Bat -- Fur Affinity [dot] net

A lesser-known Sonic transformation from 'Sonic and the Secret Rings'. This form was attained by Sonic in the World of the Ara

Just a few alts by PumpkinSpices -- Fur Affinity [dot] net

Favorites Gallery for JulianCross-titan -- Fur Affinity [dot] net

Darkspine Sonic by silver2therescue -- Fur Affinity [dot] net

Favorites Gallery for Wereboy-Ryan -- Fur Affinity [dot] net

Darkspine Sonic Second try by kittyshootingstar - Fanart Central

Darkspine Sonic and The Failure Goddesses by NIKEBERKAY7700 on DeviantArt

Darkspine the plan sonic forms normal by Wereboy-Ryan -- Fur Affinity [dot] net

Favorites Gallery for Wereboy-Ryan -- Fur Affinity [dot] net

N E G A N E O N — A warmup Darkspine Sonic before I get down to

Darkspine Sonic by Smores_the_Bat -- Fur Affinity [dot] net

Favorites Gallery for Wereboy-Ryan -- Fur Affinity [dot] net