modgen super sonic Palette - Pixilart

Sonic the hedgehog: Blue trouble – The adventures of Jesse and Sonic

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

Commissions Info by RetroHero -- Fur Affinity [dot] net

PACK DE SPRITES HD SONIC CLASSIC (MODGEN) V1

ArtStation - Sonic 3 Modernized

Classic team dark concept by SharkGuy01 on Newgrounds

The VG Resource - Dolphman's sprite library of customs & edits

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

The Finalised Falling Sprites : r/SonicTheHedgehog

Modgen classic amy over amy [Sonic CD (2011)] [Requests]