There are seven Chaos Emeralds hidden in the game. Collecting all seven is required to unlock the true ending and the Extra Zone, Nonaggression. To access the Extra Zone: collect all seven Chaos Emeralds, complete the main campaign once, and then defeat the Final Zone boss again with Sonic as the team leader.

Experiment with all 20 team pairings and their unique abilities.

: Use a Special Key (found in various acts) to access the Special Stages and win the Chaos Emeralds.

Do you have a specific question about Sonic Advance 3 or a 100% save file? I'd be happy to help!

: Rename the save file to match your Sonic Advance 3 ROM file exactly .

Make sure the save file matches the region of your ROM (USA/Eur vs. Japan).

Collecting Emeralds requires a two-step process in each of the seven main zones:

Each zone contains Chao that must be located and collected. In the game, you must find 10 Chao per zone, unlocking a Special Key that allows access to that zone's Special Stage, where a Chaos Emerald is obtained.

The game should now load into a file that has all Chao collected and all characters unlocked. Troubleshooting

: Rename the downloaded save file to match your ROM's filename exactly (e.g., Sonic Advance 3.sav for Sonic Advance 3.gba ).

Loading a fully completed save file completely transforms your gameplay experience by unlocking content that normally takes dozens of hours to reach.

These modes are unlocked only after specific completion milestones. Why Players Look for a 100% Save File