Sonic Style Sprites - Original and Custom by Abbysek on DeviantArt

Updated a little, Credit to person who ripped once again

Custom / Edited - Sonic the Hedgehog Customs - Mecha Sonic Mk II (Advance-Style) - The Spriters Resource

The Spriters Resource - Full Sheet View - Sonic the Hedgehog Customs - Sonic (Sonic 1 Beta-Style)

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

Custom / Edited - Sonic the Hedgehog Customs - Sonic (StH2 Part 1+2-Style, Expanded) - The Spriters Resource

Dorkly Sonic Spritesheet Version 1 by Superdave938 on DeviantArt

Mobile - Sonic the Hedgehog - General Objects - The Spriters Resource

Mobile - Super Runners Sonic Games (Bootleg) - Sonic the Hedgehog

sonic 3 prototype sprites extended by enzogames29 on DeviantArt

Arcade - Simpsons, The - Homer Simpson - The Spriters Resource