To enable Debug Mode, play sounds 01, 09, 09, 04, 01, 00, 01, 08 (October 18, 1994, the US/European release date of Sonic & Knuckles this is also the Debug Mode cheat from Knuckles in Sonic 2).To play a specific Special Stage, play a sound from 00-0F and then select Special Stage.As in prior games, the Sound Test allows several cheats: Then, scroll down the list of menu options and select Sound Test. If performed correctly, you will hear a ring chime. Notably, Origins removes the requirement of needing to enter it in the rather narrow timeframe between the Sega logo background turning black and the white flash just before the title screen.
The Level Select is enabled the same way as in Sonic the Hedgehog 3: Up, Up, Down, Down, Up, Up, Up, Up.
