Question: can you transfer pokemon from firered to heartgold?
Answer: This is a ONE-WAY TRANSFER! Pokémon sent from Pokémon FireRed to Pokémon HeartGold cannot be sent back to Pokémon FireRed! Put your Pokémon FireRed cartridge into the GBA slot of the Nintendo DS. ... Start your Pokémon HeartGold game and choose the "Migrate from Pokémon FireRed" option in the menu.