Sonic CD Cheats

Press Down, Down, Down, Left, Right, A at the title screen while ''Press Start'' is flashing to display the sound test menu. Set one of the following sound combinations and press Start to enable the corresponding cheat function. The sounds would be like FM07 and special levels would be the result.

Enter FM07, PCM07, DA07 for special levels
Enter FM42, PCM03, DA01 to view a hidden scene
Enter FM46, PCM12, DA25 to view a hidden scene
Enter FM42, PCM04, DA21 to view a hidden scene
Enter FM40, PCM12, DA11 to view a hidden scene
Enter FM44, PCM11, DA09 to view a hidden scene

If you leave Sonic alone for three whole minutes, he will leave the screen and say ''I'm Outta Here!'' Be warned that the game ends this way.

You must first beat the game in Time Attack Mode in under 37'27''57. Then return to the title screen to find a new option open: D.A. Garden

Enter these numbers at the sound test:FM no.46, PCM no. 12, DA no. 25 then press start. A Japanese message with creepy sonic should appear.

There is a debug mode, but for this to work you'll have to get in the sound test area. In the sound test, put those numbers to their appropriate mode: FM40 PCM12 DA11. When those numbers are in place, hit the start button. If this sequence is set correctly, you should have a pic of Tails, a Jeep and a word from the Staff saying ''See You Next Game.'' Push any button and you shall go back to the main menu screen. Start any game and you will be in debug mode.

Hit the B Button and Sonic will transform into any object/enemy you want to place on the zone. Press C to change the object, and press B to go back into Sonic. The changes however will disappear after you've completed or exit the act.