Here are a few ROM downloader apps that you can use to download and play the Pokémon Y Randomizer ROM on Android:
Move the randomized ROM file (or the patch folder) to your phone's storage. Place it in a folder you can easily find, like /Downloads/PokemonY_Randomized 4. Configure Citra on Android on your Android device. Grant the app permission to access your storage. Select the folder where you saved your randomized ROM. Pokemon Y Randomizer Rom Download Android