Game Boy Advance - Sonic Advance 2 - Sonic - The Spriters Resource

RatherNoiceSprites's Classic Sonic Sprites [Sonic the Hedgehog Forever] [Mods]

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

Sonic & Knuckles Sprite Sheets – Sega Genesis - Sonic Galaxy.net

Custom / Edited - Sonic the Hedgehog Customs - Tails (Sonic 2, Expanded) - The Spriters Resource

Modern Sonic Sprite Sheet by RedactedAccount on DeviantArt

Custom / Edited - Sonic the Hedgehog Customs - Sonic - The Spriters Resource

Custom / Edited - Sonic the Hedgehog Customs - Sonic (Sonic 1-Style, Enhanced) - The Spriters Resource

Genesis / 32X / SCD - Sonic CD - Sonic

Custom / Edited - Sonic the Hedgehog Customs - Sonic (StH1 Part 1+2-Style, Expanded) - The Spriters Resource

PC / Computer - Sonic Origins - Enemies - The Spriters Resource