Ensure the file matches the "4780" scene ID and has an .nds extension.
To play this specific release on modern hardware, you will need a Nintendo DS emulator or a flashcart. 4780+pokemon+heartgold+uxenophobiands+install
DeSmuME or MelonDS are the gold standards for accuracy. Ensure the file matches the "4780" scene ID and has an
Open your emulator, select "Load ROM," and navigate to the directory where you saved the file. select "Load ROM