Uncheck the ‘always to ask’ pop up that shows up. exe file in order to run the game successfully. After this step, the visual boy Advance box shows up.Following this first step, you have to download Pokémon Emerald ROM.To get a visual boy advance, you have to click on the right link. Here, visual boy advance is a good option to choose as an emulator. First, you have to download game boy advance emulator.By following some techniques, you have to get the Pokémon that you want. To play Pokémon Emerald on your computer, you have to download an emulator and you have to follow some steps for it. How to Download an Emulator to Play Pokémon Emerald Rom? 1.1 Top 10 Most Downloaded Pokémon Emerald Rom Games:.1 How to Download an Emulator to Play Pokémon Emerald Rom?.