The "Super" transformation has been moved to a separate button.
Using the Bubble Shield bounce as the second act of a zone started no longer crashes the game.
The game no longer saves your score after finishing a game file. Starting on any level from a finished game file resets the score to 0.
Some general bug fixes such as glitching into Knuckles' section in Green Hill with Sonic.
HOME and POWER button delay has been fixed.
Press Garden Act 2 had a path with a row of 4 ice cubes that you couldn't get past without the fire shield. If you had Super Sonic without Tails, you were locked in there until the Super form wore off. That row of ice cubes has been cut down to two to compensate for that situation should it occur.
The level design for the Stardust Speedway Act 2 boss area has been altered to prevent Tails from flying over the Eggman machine and bypassing it.
Using the Drop Dash on the Tornado as Super Sonic in Mirage Saloon Act 1 no longer crashes the game.
Tails (or Knuckles if "& Knuckles" is active) as a partner now changes size when respawning in areas where a size change is necessary in Metallic Madness Act 2.
Reaching the boss area of Titanic Monarch Act 2 no longer cancels your Super form.
It is no longer possible to access the level select via the title screen. It must now be done via a "No Save" game on the Save Select screen with Debug Mode enabled.
Debug controls have been changed. now toggles object placement mode, cycles forward through objects, + cycles backwards through objects, cycles through monitor subtypes, and places objects.
Teleporters and Random monitors can no longer be placed in Debug Mode.
Giant Rings placed in Debug Mode now only give the player 50 rings rather than take the player to the Special Stage.
Quitting the game now takes you to the respective mode's menu instead of the main menu.
Time Attack's menu interface has been altered, and a new results screen is displayed when reaching the goal.
The Time Attack leaderboards have been reset.
It is no longer possible to select the same character as another player in Competition Mode.
Screen layout settings have been added to Competition Mode, allowing players to play without stretched screens.
The countdown jingle now plays when one or more players have only 12 seconds left to reach the goal in Competition Mode.
There is a new data option in the settings which allows the player to delete all saves in Mania Mode (and Encore if they have Mania Plus), medallions, replays (if they have Mania Plus), all save data and Time Attack scores.