Use your computer, tablet or phone to download Sonic R (U) ISO and turn them into an arcade machine using the wide variety of Sega Saturn emulators available on RomsDL. The free Sonic R (U) ISO game comes from the US region. It only takes a small portion of your hard disk to download Sonic R (U) ISO ROM or you can always play Sonic R (U) ISO online. This game was already downloaded by 492 people and you can be the next on the list if you simply tap on the save button.