Sonic 3 super sonic with the sonic 2 palette looks really good : r

Sonic R

Sonic 3 Styled Modern Super Sonic by TannerTW25 on DeviantArt

Sonic Union

Sonic Perler Beads Tails Bead Sprite 8 Bit Pixel Art Knuckles the Echidna Hedgehog Sonic 2 Sonic 3 Sega Genesis Robotnik

Knuckles Perler Beads Pixel Art Video Game Art Sonic - Hong Kong

Sonic (SSB4) - SmashWiki, the Super Smash Bros. wiki

Sonic 2(S3 COMPLETE) [Sonic The Hedgehog 2 Absolute] [Mods]

CE+ Styled Sonic (Sonic 2 Absolute) [Sonic The Hedgehog 2 Absolute] [Mods]

Other Sonic Sprites (Sonic 3 Style/Color Palette) by NickyTeam2 on DeviantArt

Sonic 3D Blast - Wikipedia

Sonic (SSBU) - SmashWiki, the Super Smash Bros. wiki

MerryCDi on X: Fun Fact: Earlier palette data shows that the green used in Sonic's palette used to be pitch black a color that is the same as it's transparent color, here

Genesis / 32X / SCD - Sonic & Knuckles - Mecha Sonic Mk. II - The Spriters Resource