Explore the Johto Region with your Pokémon by your side! Prepare for thrilling new adventures as Legendary Pokémon awaken! Travel across the Johto region catching, training and battling with Pokémon on your journey to become the Pokémon League Champion!  ~ A Trainer and Pokémon side-by-side! For the first time, any of your Pokémon can follow behind you as you explore on your journey!   ~ Relive the Adventure or experience it for the first time! Pokémon HeartGold and SoulSilver Versions are upgraded and expanded games of Pokémon Gold and Silver Versions released a decade ago, packed with enhancements and new features!  ~ Discover the myths and mysteries of Johto and beyond! More adventures than before! Explore new areas and catch Legendary Pokémon not found in Pokémon Gold and Silver Versions!  ~ Enhanced graphics and sound! See the majestic Johto region like never before! ~  New touch screen features simplify and enhance gameplay!  ~ Trade Pokémon and battle your friends over Nintendo Wi-Fi Connection (including Pokémon Diamond, Pokémon Pearl and Pokémon Platinum Version players).   Just announced: ~  Travel and Train! Wirelessly transfer your Pokémon to the new Pokéwalker accessory and train them by walking in real life!  ~ Catch Pokémon and find items using the Pokéwalker accessory and transfer them to your Pokémon HeartGold or SoulSilver Version game! Trade items with other players that have a Pokéwalker!