Master System - Sonic the Hedgehog - Sonic the Hedgehog - The Spriters Resource

Master System - Sonic the Hedgehog - Sonic the Hedgehog - The #1 source for video game sprites on the internet!

Game Gear - Sonic Chaos - Sonic (May 17, 1993 prototype) - The Spriters Resource

Genesis / 32X / SCD - Sonic the Hedgehog 2 (Prototypes) - Sonic the Hedgehog (Earliest Alphas) - The Spriters Resource

Master System - Sonic the Hedgehog 2 - Title Screen - The Spriters Resource

Master System - Sonic Chaos - Dr. Eggman - The Spriters Resource

Hedgehogs from a Master System-ly World by MrRayoxter587 on DeviantArt

Custom / Edited - Sonic the Hedgehog Customs - Sonic 4 Title Screen (Sonic 1-Style) - The Spriters Resource

Mobile - Sonic the Hedgehog 2 - Ending - The Spriters Resource

Master System - Sonic the Hedgehog 2 - Badniks - The Spriters Resource

Sega Genesis / 32X - Sonic the Hedgehog - Special Stage - The Spriters Resource

Mobile - Sonic the Hedgehog 2 - Title Screen - The Spriters Resource