Sonic Chaos [b1] ROM Download can be obtained free for Game Gear on EmuGames.net only. Play Sonic emulator game in English for the USA region. Sonic Chaos is a Gear ROM that you can download to your computer or play online within your browser. You can also download roms such as Sonic Advance and Sonic The Hedgehog 3 that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.