SC Cheats & Glitches: Sonic 2 - Debug, Level Select & Super Sonic

Sonic the Hedgehog 2's Biggest Easter Egg and Other References - IGN

Sonic the Hedgehog 2 Cheats For Genesis GameGear Sega Master System Xbox 360 iOS (iPhone/iPad) PC PlayStation 3 Android 3DS Nintendo Switch - GameSpot

Sonic the Hedgehog 2 (16-bit)/Hidden content - Sonic Retro

Did You Know Gaming? — Sonic The Hedgehog 2 (Genesis/Mega Drive). Cheat

Sonic the Hedgehog 3 Cheats For Genesis Xbox 360 - GameSpot

Sonic Mania Cheats & Cheat Codes for PC, PS4, Xbox One, and Nintendo Switch - Cheat Code Central

Sonic Origins achievements still unlock when using cheat codes

Sonic Frontiers, Cheats & Cheat Codes for Xbox One, PlayStation 5, Windows, and More - Cheat Code Central

Sonic the Hedgehog 2 (2022) REVIEW – Exciting, Emotional, Exhausting

Sonic the Hedgehog 2 ROM Download - Sega Game Gear(Game Gear)