-Object transformation-
Press B during game play to change Sonic into a game object. Press A to change into a new object. Press C to place an object on the screen. Press B again to revert back to Sonic. Note: The type of object that may be selectable will vary from level to level.
-Invincibility-
Sonic is, by default, invincible in debug mode.
-Slow motion-
Pause game play and hold B.
-Restart-
Pause game play and press A.
-Frame advance-
Pause game play and press C.
-Night mode-
Hold C and press Start when selecting a level in level select.