To enable debug mode first unlock the sound test via special stage time trials, when in the sound test enter PCM 12 DA 11 and a picture of tails will pop up. After this simply press any button to return to the main menu and start a game and you'll be in debug mode (Debug mode only works in the normal game and stage select, if you play a level in time trial mode Debug will be disabled and you will have to re-enable it). Controls for debug are as follows, Circle: Enable/Disable item mode, Square/Triangle: Place object while in item mode, X: Cycle through objects while in item mode.
Bonus Round Time Attack
You must first beat the Time Attack in under 30'21''05. Once you do this, return to the title screen, and press Left on the Time Attack mode option.
Easter Egg - Sound Test Options
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
Easter Egg - Secret Demo Mode
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
Unlockable - Visual Mode
Beat the Time Attack Mode under 25'46''12. You'll open up a new option in the main selection screen called Visual Mode.
Unlockable - View best ending movie
To view the best ending movie, collect all the Time Stones, and get the good future for every level.
In Time Trial mode having your total time under a certain amount will unlock the following extra modes.
D.A. Garden - Have a total time less than 37'00 in Time Trials
Sound Test - Have a total time less than 4'00 in Special Stage Time Trials
Special Stage Time Trials - Have a total time less than 30'00 in Time Trials
Stage Select - Have a total time less than 5'00 in Special Stage Time Trials
Visual Mode - Have a total time less than 25'00 in Time Trials
See Sonic Team's Best Times
To see the best times of the game designers, at the title screen press Right, Right, Up, Up, Down, and C.
Sound Test Codes
Entering the following numbers in the Sound Test to access these messages (You will need Sound test Unlocked in Extras): (Codes work with both Japanese and American sound tracks)
Code: - Effect:
PCM 04 DA 21 - "Batman" Sonic
PCM 11 DA 09 - Cute Sonic
PCM 03 DA 01 - Dj Mc Sonic
PCM 32 DA 08 - New Dusty Desert Concept Art
PCM 07 DA 07 - Secret Special Stage
PCM 12 DA 11 - Tails - See you Next Game
PCM 12 DA 25 - That Freaky Sonic One
At the title screen, press: Up, Down, Down, Left, Right, B
At the title screen, press: Down, Down, Down, Left, Right, A
|88 Miles per Hour (Bronze)||Travel through time|
|All Stages Clear! (Silver)||Finish the Game|
|Dr. Eggman Got Served (Bronze)||Destroy Dr. Eggman's final machine|
|Heavy Metal (Bronze)||Defeat Metal Sonic without getting hurt|
|Just in Time! (Silver)||Complete Time Attack mode in under 25 minutes|
|Just one hug is enough (Bronze)||Get a hug from Amy|
|King of the Rings (Silver)||Collect 200 Rings|
|Paradise Found (Bronze)||Complete a zone in the Good Future|
|Saviour of the Planet (Silver)||Destroy all the robot teleporters and Metal Sonic holograms in the past|
|Statue Saviour (Bronze)||Find the angel statue in Wacky Workbench|
|Take the High Road (Bronze)||Pass the upper Signpost in Collision Chaos Zone 2|
|Treasure Hunter (Gold)||Collect all the Time Stones|