Game Downloads: Original
Save Files: ZB Games Archive (.sav)
If you plan to run the emulator on a Desktop or Laptop, please start with Step 1.
If you're using an Android device, you can install Multigba S from the Google Play Store, set it up, and skip to step 5.
When playing online, make sure both of your games have the same file name. Otherwise, it won't properly copy the save data between your games.
Step 1 - Download the latest version of BlueStacks X and install it.
Step 2 - Enable HyperV
If BlueStacks asks you to grant it HyperV permissions and restart, make sure to save and close everything before accepting.
Step 3 - Install Multigba S on BlueStacks
Using the search bar at the top, type "Multigba S". If the app does not appear, click "Search with Google Play Store".
Once the Google Play Store loads, sign in and search for the emulator.
Step 4 - Download the game and save file
Once finished, navigate to the Home Screen by clicking the "Home" button. This button can be found on the bottom-right corner of the BlueStacks window. From there, click "System Apps", and then click "Media Manager".
Because the default Media Manager sucks, it only exists as a means to our end. Once in the Media Manager, click "Import From Windows" and add the files you downloaded. That's about as much as we can stomach of this app.
Once finished, go back to the Home Screen and open the Google Play Store. Search for "Files by Google" (a competent file manager) and install it.
Once installed, open the app and allow it to access your files.
From there, scroll down and click "Internal storage", then navigate to DCIM --> SharedFolder.
Click and hold any files that end with .gba, click the 3-dot menu on the top-right, and select "Move to".
From there, click "Internal storage", click "Download", then click "Move here".
Step 5 - Set up Multigba S
Once installed, open Multigba S. You can optionally log into your Google Account through this app, which makes inviting friends a lot easier.
Click the monkey wrench icon at the top-right hand corner of the screen. Once there, set up your controller mapping, whether on-screen buttons appear, the display orientation, etc. Be sure to disable "Start auto search if Select Game list is empty", as this auto-search dialogue box is buggy.
After that, we need Multigba S to create a blank save file. This internally creates a save file folder for us. Navigate to the main screen of Multigba S and select "SINGLEPLAYER". Then, open any game up until when it saves.
Once the game is saved, you'll want to open Files by Google again.
Navigate to Android --> data --> com.hqgame.networkgba --> files --> save
Make sure your save files in DCIM --> SharedFolder match the same names as the ones you're seeing here. If they don't, go back to DCIM --> SharedFolder and rename them.
Once your save file names match, navigate once more to Android --> data --> com.hqgame.networkgba --> files --> save and delete all of the save files present.
Lastly, navigate to DCIM --> SharedFolder. Click and hold on the files ending in .sav and select "Move to".
Move these files to Android --> data --> com.hqgame.networkgba --> files --> save
Once you've done this, you should be ready to play the game online.
Special thanks to XZatchBellGamerX for providing the save file!