Mario Tennis ROM Download for Gameboy Color (GBC) on Emulator Games. Play Mario Tennis game that is available in the United States of America (USA) version only on this website. Mario Tennis is a Gameboy Color emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as Super Mario Bros. Deluxe (V1.1), Mario Tennis GB and Super Mario Bros. Deluxe as shown below. Mario Tennis works on all your devices in high quality.