Ensure you're playing the latest version of Sonic 3 Air. Updates often fix bugs related to save data.
You must collect all 7 Super Emeralds. To do this: sonic 3 air save data 101
: Stores your custom controls, display settings, and audio preferences. 3. Backing Up and Transferring Saves Ensure you're playing the latest version of Sonic 3 Air
Look for a file named saveData101.bin or saveData.json . sonic 3 air save data 101