Sonic The Hedgehog's Gameworld ROM Download can be obtained free for Sega Pico on EmuGames.net only. Play Sonic emulator game in English for the USA region. Sonic The Hedgehog's Gameworld is a Sega Pico ROM that you can download to your computer or play online within your browser. You can also download roms such as Sonic Rivals 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.