Sonic Bros is an online NES game that you can play at Emulator Online. This free Nintendo game is the United States of America region version for the USA. It has been played 6,633 times so far and was posted on February 15, 2018. Sonic Bros is a single title from the many arcade games, platform games and sonic games that we offer for this console. If you enjoyed playing this, then you can find similar games in the nes games category. Sonic Bros game is from the various retro games on the site, and there are more games like this, including Sonic Mania Edition, Super Smash Bros. and Sonic Advance 3.