You need a trusted emulator from the Google Play Store. Avoid "Emulator" apps with excessive ads or permissions.
We must address the elephant in the room. Downloading copyrighted ROMs is legally grey. Pokemon Indigo League Game Download For Android
How to play hacks: Download the .ips or .gbc hacked file and load it the same way as the original ROM. patch over your original save file. You need a trusted emulator from the Google Play Store
You might ask: "I can play modern Pokemon games. Why go back to 1998?" Downloading copyrighted ROMs is legally grey
Here is the exact process to play Pokemon Indigo League on your Android phone right now.
To help you get started with the best setup, could you tell me:
Because the original Indigo League games (Red, Blue, and Yellow) were released for the Game Boy, you need an emulator to run them. Here are the top choices for your Android device: