: Use an online tool like Rom Patcher JS or a software like Lunar IPS . Apply the Patch : Upload your clean FireRed ROM. Upload the Pokémon Fusion Origins patch file. Click Apply Patch to create a new .gba file.
To play Pokémon Fusion Origins, you need two separate files: how to download pokemon fusion origins
: Open your emulator, navigate to your downloads, and select the patched Fusion Origins file. Important Safety Tips : Use an online tool like Rom Patcher