Sonic & Knuckles Cheats For Genesis Xbox 360 - GameSpot

Proto:Sonic the Hedgehog 3 - The Cutting Room Floor

Sonic the Hedgehog 3 Cheats For Genesis Xbox 360 - GameSpot

Knuckles the Echidna in Sonic the Hedgehog 2, A Gamer's Cheat Codes Wiki

Tails' Channel, celebrating 15 years on X: A number of Sonic 3 & Knuckles soundtest features were added in the latest update. @TheOcelot01 recapped all the codes in the list below. #SonicNews

Random Tweaks + Cheat Codes for Completed Saves [Sonic the Hedgehog (2013)] [Mods]

Let's Play Sonic 3 & Knuckles [Bonus (1/2)]

Sonic Origins achievements still unlock when using cheat codes

Sonic The Hedgehog Series

Sonic Origins cheat codes for level select, debug mode and Super Sonic

Sonic Colors: Ultimate Cheats & Cheat Codes for Xbox One, PlayStation 4, Nintendo Switch, and More - Cheat Code Central