Sonic The Hedgehog 2 (CLF).jpg

Sonic the Hedgehog 2 - VGMdb

Sonic Mania cheats: debug mode, level select, unlockables and more

Sonic Classic Heroes, Wiki

Sonic The Hedgehog 2 cheat for Mega Drive/Genesis - Level Select (with save state for emulators)

Sonic 2 Level Select & Debug Mode Guide, PS4, Switch & XB1

Sonic the Hedgehog 2 Cheats & Cheat Codes for PC, PS4/5, Switch, and Series X/S - Cheat Code Central

Sonic the Hedgehog 2 (Genesis) - The Cutting Room Floor

All Sonic Origins Cheat Codes

Sonic the Hedgehog 4: Episode II Cheats For PlayStation 3 Xbox 360 PC iOS (iPhone/iPad) - GameSpot

Sonic the Hedgehog 2 (2013), Sonic Wiki Zone