If you are determined to use QR codes for Heart Gold , here is the legitimate workflow (PC emulator required):
Pokémon HeartGold was released for the in 2009, which was a generation of hardware that did not have a camera or built-in QR code functionality . QR code features were only introduced to the Pokémon series starting with Pokémon Sun and Moon on the Nintendo 3DS.
Alternative: The Wi-Fi Mystery Gift Exploit (No QR Codes Needed) Pokemon Heart Gold Qr Code
QR codes that allow players to share custom game setups.
If you own a modded Nintendo 3DS, the homebrew title installer called features a built-in QR code scanner. This allows you to install application files (.cia) wirelessly without taking out your SD card. How to Scan a QR Code via FBI: Turn on your modded 3DS and launch the FBI application. Select Remote Install from the main menu. Select Scan QR Code . If you are determined to use QR codes
If you are using a 3DS to access these features, you can activate the built-in camera by pressing simultaneously on the HOME menu. Tap the QR icon to scan codes provided by trusted community sources for your game files or tools.
To use QR codes with a Pokémon HeartGold ROM, you generally need a modded Nintendo 3DS system. Here is the standard workflow that advanced trainers use: Step 1: Set Up Twilight Menu++ If you own a modded Nintendo 3DS, the
If the DNS exploit fails (due to Wi-Fi security issues), you can use a cheat device. This does not involve QR codes, but you will find many QR images online that contain these codes as text.
Because official Wi-Fi events for HeartGold ended over a decade ago, fans use QR codes to "inject" specific Pokémon or event-only items like the Enigma Crystal or Azure Flute into their games.
It depends. If you are playing online via custom servers or trading on modern platforms (like the Switch games via Pokémon HOME), poorly generated Pokémon with illegal moves or impossible stats will be blocked. If you are just playing an emulated version offline, there is no risk of a ban.