You can't change the settings (e.g., if you want "Legendaries" turned off, you're out of luck). 2. Create Your Own (Recommended)
Sites like Operation iDroid or PokeHarbor offer pre-patched ROMs where the work is already done. Fast and easy; no software required. Pokemon Gold Randomizer Rom Download
Most experienced players prefer using the , which works for Generations 1 through 5. You can't change the settings (e