I'm learning to use the SGDK, I made these edits for Sonic 1 and 2 (I'm going to use the Sonic 1 palette). The Sonic 3D sprite I made just for practice!

Sonic 1 Hacking Tutorials - Object Art Editing Part 1

How put my sprites into new SGDK project? - SpritesMind.Net

Sonic 1 Sprite Model [Sonic Adventure DX] [Works In Progress]

I edited a Sonic's sprite to look more like Sonic movie design. Hope you like it, tell me what you think. : r/SonicTheHedgehog

Sonic 1/2/3K - Stylistically Consistent Edits by RonaTheRTD on DeviantArt

Sonic 1 Hacking Tutorials - Object Art Editing Part 1

sonic 1 sprite editing

How to Edit Player Palettes [Sonic the Hedgehog 2 (2013)] [Tutorials]

SPRITES tutorial on SGDK : need to understand - SpritesMind.Net