Mario Tennis GB is an online GBC game that you can play at Emulator Online. This free Game Boy Color game is the United States of America region version for the USA. It has been played 3,240 times so far and was posted on September 11, 2017. Mario Tennis GB is a single title from the many arcade games, sports games and tennis games that we offer for this console. If you enjoyed playing this, then you can find similar games in the gbc games category. Mario Tennis GB game is from the various retro games on the site, and there are more games like this, including Super Mario 64, Mario Tennis 64 and Yu-Gi-Oh! Monster Capsule GB.