Gaming Detail: Sonic CD Has A Creepy Bonus Screen

Many might not know that Sonic CD includes a secret sound test that hides a creepy room with an even creepier message on its walls.

The OTHER creepy hidden screen from Sonic CD : r/creepygaming

Sonic CD Secrets

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SegaSonic the Hedgehog - Debug Tools and So Much More

Sonic CD Classic on the App Store

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What's the Deal with That Creepy Sonic CD Secret? « Legends of Localization

Sonic the Hedgehog technological and gaming history

Sonic Forces Was Good, Y'all Just Have Bad Taste

Game Corner [Sonic CDay]: Sonic the Hedgehog CD (Xbox One) – Dr. K's Waiting Room

Screen Sound Journal n3

Creepy but True Gaming: Sonic CD Secret Message

Sonic the Hedgehog CD, Sonic Wiki Zone