A few days ago, Quan Ming told me where to download the US version of Pokémon FireRed, but I couldn’t understand why the ROM was incomplete (5MB). Today, I finally realised that it was supposed to be a ZIP file, not a GBA file. So I managed to open the game, but there was a save error (which required an exchange of backup memory), so the only way to save the game was to use the ‘Save State’ option on the menu of the emulator.