Sprite comparison for Mania's intro animation (SegaSonic, Sonic 1

Sonic, Sprite Chronicles Wiki

Steam Workshop::Sonic 3's Sonic Sprites in Sonic 1

Sonic The Hedgehog (1991) - Sonic's Sprites by AsuharaMoon on DeviantArt

The VG Resource - Doing Sonic 1-sized, Sonic 1-visual-styled sheets for other characters than Sonic

Custom Hybrid Sonic / SonicClone Sprites [Sonic the Hedgehog Forever] [Mods]

Teen Sonic in Sonic 1 Sprites by LuisToons12345 on DeviantArt

Sonic 1 Waiting Mania Style Sprites by facundogomez on DeviantArt

A bunch of Sonic sprites by PacManfan64

my crappy sprite edit of the sonic sprite from sonic 1 edited to

my crappy sprite edit of the sonic sprite from sonic 1 edited to look sorta like modern sonic : r/SonicTheHedgehog