Access the level select, then navigate to the sound test in the bottom-right corner of the screen. Play sounds 04, 01, 02, 06 in order, and the "emerald-collected" sound should play. All emeralds will now be collected and the player can turn super by collecting 50 rings, then pressing the jump button twice.
Change Tails name to Miles
Start a new game. Once the SEGA logo appears, tap the letters A, G, E, and S in that order, and a chime should sound. Tails name should now be changed to Miles.
Debug Mode
Access the level select, then navigate to the sound test in the bottom-right corner of the screen. Play sounds 01, 09, 09, 02, 01, 01, 02, 04 in order, and a chime will sound. Now enter any level and tap the word "SCORE" in the top-left corner of the screen. You will transform into a ring and be able to freely move around the level using the D-Pad. Press the + or - buttons to change which object you are, and press the jump button to place that object. To change back into your character, tap "SCORE" again.
Enter Proto Palace Zone
To play the original leaked prototype version of Hidden Palace Zone, "Proto Palace Zone", use the Level Select code, enter the Debug Menu code, then play the sounds 03, 03, 03, 0B, 10, 10, 10, 04. After hearing a chime, select "Hidden Palace".
Game Config Menu
Access the level select, then navigate to the sound test in the bottom-right corner of the screen. Play the sound 00 three times, and a Game Config menu should appear on the screen. The player can change their character, type of items, ability to fly, and air speed cap in this menu.
Hidden Special Stage
Access the level select, then navigate to the sound test in the bottom-right corner of the screen. Play the sound 07, then enter the special stage.
Level Select
Tap "A" to display the main menu, then tap "Up", "Down", "Left", "Right" on the D Pad then tap "A". Select "New Game" to access the level selection screen.
Level Select Alternate
Start a brand-new game in no save mode. Once the SEGA logo design appears, tap the letters S, E, G, and A and a chime should sound. Hold 2 or even more fingers on the display up until the level select appears.
Prototype version of Hidden Palace Zone
Enable the "Debug mode" code. Play the sounds "03", "03", "03", "0B", "10", "10", "10", "04" in order. A sound will confirm correct code entry. Select "Hidden Palace" to play that zone.
Unlimited Continues
In the level select, enter 1,9,9,1,2,1,1,2,4 at the music test and you should hear a jingle.