The current state of on the Nintendo Switch involves a mix of official software updates and unofficial modification efforts. While "ROMs" for the Switch are technically distinct from the Genesis originals, the community often refers to the game's assets and unofficial "fixed" versions this way. Official Software Updates
Sega released official updates that addressed many of the glaring issues. A "fixed" ROM typically has these updates pre-integrated (often called "Update v1.0.4" or "v2.0.2" depending on the region). These updates improved the Game Gear audio quality and fixed several game-breaking collision bugs in the "Plus" expansion content. 2. Modded Performance Tweaks sonic origins plus switch rom fixed