RBI Baseball (Unl) ROM Download for Nintendo (NES) on Emulator Games. Play RBI Baseball (Unl) game that is available in the United States of America (USA) version only on this website. RBI Baseball (Unl) is a Nintendo emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as RBI Baseball, Tetris (Unl) and RBI Baseball 3 as shown below. RBI Baseball (Unl) works on all your devices in high quality.