Sonic the Hedgehog 3 Cheats For Genesis Xbox 360 - GameSpot

Sonic the Hedgehog 2 (1992), A Gamer's Cheat Codes Wiki

Every Cheat Code in Sonic Origins

Sonic & Knuckles - Mainline Sonic Games - Sonic Stadium

The List of Every Cheat Code in Sonic Origins

Sonic 3 & Knuckles ULTIMATE CHEAT GLITCHES!!!

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

Sonic Mania Cheat Codes (Just like the Old Days) : r/NintendoSwitch

Sonic the NFL cheat code : r/SonicTheHedgehog

Sonic & Knuckles, A Gamer's Cheat Codes Wiki

Sonic Mania Cheats: Level Select Code, How to Collect Chaos