Dark Sonic 2 by Phantom644 on DeviantArt

Who or what is he? #5 by Phantom644 on DeviantArt

Dark Super Seth by Phantom644 on DeviantArt

Team Sonic Herotics and Team Negative Rulers by Phantom644 on DeviantArt

Dark Sonic Idles by fnafan88888888 on DeviantArt

Dark Seth sprites again? by Phantom644 on DeviantArt

Super Sonic 2 sprite sheet by SuperRetroClassic81 on DeviantArt

Dark Sonic 2 by Phantom644 on DeviantArt

Dark Michael/Mike sprites sheet updated by Phantom644 on DeviantArt

Dark Shadow Ultimate sprites sheet by Phantom644 on DeviantArt

Dark Sonic sprites (Dark Blue) by Phantom644 on DeviantArt