You can reach 101% legitimately by:
B. If battery is dead:
The save file format for Sonic 3 Air is a binary file with a .sav extension. The file contains data such as: 101 save file sonic 3 air
: Having cleared the game with every possible combination of characters (Sonic & Tails, Sonic alone, Tails alone, and Knuckles) with full emerald sets. How to Install a 101% Save File You can reach 101% legitimately by: B
To reach this status, you generally need to fulfill the following criteria: How to Install a 101% Save File To
: In Sonic 3 A.I.R., "101%" is a common term for files that have every Super Emerald and Chaos Emerald collected across all character combinations. Sonic 3 & Knuckles - The Cutting Room Floor
To claim a true 101% save file, you must go beyond just beating the game: All Super Emeralds