Originally, items like the (for Rotom's forms), the Member Card (for Darkrai), or the Enigma Stone (for Latios/Latias) were only available via limited-time Nintendo Wi-Fi distributions.
You will randomly receive classic events like the , Ash's Pikachu , the Lock Capsule , and key items to access secret areas like the Sinjoh Ruins. Summary: The Best Way to Enhance Your HeartGold Playthrough
. This technology wasn't introduced to the main series until much later, starting with Pokémon X and Y and becoming a central mechanic in Pokémon Sun and Moon
: You scan these codes with the 3DS camera within the FBI app to download and install the game directly to your home menu. Play DS Games from your 3DS Home Menu!! (Easy)