Game Jolt - Share your creations

PC / Computer - Sonic Classic - Title Screen - The Spriters Resource

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

Genesis / 32X / SCD - Sonic & Knuckles - Sonic the Hedgehog - The Spriters Resource

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

The VG Resource - RatherNoiceSprites' Custom/Edited Sprites

PC / Computer - The Murder of Sonic the Hedgehog - Character Sprites (Other) - The Spriters Resource

For Real Why Ban It? - Imgflip

The Spriters Resource - Full Sheet View - Pokémon Pinball - Pokedex

RJ sprites by redballbomb on DeviantArt

The Spriters Resource - Full Sheet View - Donkey Kong Country 2