If you are trying to play Inazuma Eleven GO Galaxy (Big Bang/Supernova), which was only released in Japan, you will likely need an English patch.

Download and install the latest build of your preferred 3DS emulator.

Get the latest build compatible with your operating system.

Inazuma Eleven GO 3DS ROM Download: What to Look For

Here's a simple step-by-step guide to installing and playing Inazuma Eleven Go 3DS ROM:

Installing a ROM directly onto your 3DS allows you to play the game natively on the original hardware. This requires installing Custom Firmware (CFW), a process that modifies your console's system software.

Emulators support custom cheat codes for unlocking specific players or maxing out Prestige Points. Ensure your cheat codes match the exact regional ID (EUR, USA, or JPN) of the ROM you downloaded.

Go to the official Citra Emulator website and download the nightly or canary build.

Because Inazuma Eleven GO 3: Galaxy never left Japan, you will likely download a Japanese ROM. You can easily apply the famous English fan translation patch (such as the SXNDProject or Team Chrono Storm patches). For Citra Emulator

—the definitive 3DS version that never quite made it to his local shelves—had been a digital ghost he’d been chasing. He wasn’t just looking for a game; he was looking for the feeling of a lightning-infused soccer ball tearing through a digital net.

Which specific version are you looking to play: or Shadow ?

Level-5 has announced Inazuma Eleven: Victory Road (for modern consoles), but no word on GO remasters.

This process requires your Nintendo 3DS to have custom firmware (CFW) installed, which involves following a guide and modifying your console. The following steps are for a CFW 3DS:

The game icon will appear in your library. Double-click to play. Method B: Installing on a Modded 3DS Console (via CFW)