Sonic 1 Waiting Mania Style Sprites by facundogomez on DeviantArt

Custom / Edited - Sonic the Hedgehog Customs - Super Sonic (Sonic 1/CD-Style) - The Spriters Resource

Sonic 1, with Cool New Sprites!

Steam Workshop::Sonic 1 Sprites Custom Sonic 3 Complete

Early Style Sonic 1 Sprites in Sonic the Hedgehog 1

Sonic 1 Unused Sprites

Custom Sonic Sprties #1 by Zanudus -- Fur Affinity [dot] net

Rip out some custom sprites for S1 Sonic - Comic Studio

sonic 1 sprite map body parts - Sketchers United

Sonic 1 Delta - SSRG Demo release

Adventures of Sonic 1, Sonic the Hedgehog Hacks Wiki