Sonic Riders - Zero Gravity ROM Download can be obtained free for Playstation 2 on EmuGames.net only. Play Sonic emulator game in English for the USA region. Sonic Riders Zero Gravity is a PS2 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.