Sonic Origins cheats level select, debug mode, Hidden Palace

How to cheat in the Sonic Origins versions of Sonic the Hedgehog, Sonic 2 and Sonic 3 & Knuckles. You can't cheat Sonic CD, though!

Sonic Origins: Hidden Palace Zone Location - Gameranx

Sonic 2 Level Select Expanded (with Unused Zones) [Sonic Origins] [Mods]

Sonic Origins: Hidden Palace Zone Location - Gameranx

Sonic Mania & Sonic Mania Plus, PS4

All Sonic Origins Cheat Codes: Level Select, Debug and More - Prima Games

Sonic Origins cheats: Super Sonic, level select, and more

Sonic Origins: Can You Find the Sonic CD Sound Test Menu? - Gameranx

Proto Palace Zone, Sonic Wiki Zone

Debug Mode, Sonic Wiki Zone

Sonic the Hedgehog 2 (Aug 21, 1992 prototype) - Hidden Palace