– Only for tinkerers who don’t mind using the wrong emulator.

While this guide is for MAME, many users find better performance on Sega NAOMI-specific emulators like Flycast or Demul. 1. What You Need

Contains the essential code to boot the game.

The CHD is a bad dump or the NAOMI BIOS is incorrect. Fix: Re-download the CHD from a verified "Redump" source. Ensure you have naomi.zip AND naomigd.zip (the GD-ROM drive BIOS).