Unlike traditional ROM-based arcade boards that stored game code on mask ROM chips, NAOMI games were distributed on:

Most emulation forums will not provide direct download links for "Full Sets" because they attract DMCA strikes. Instead, they provide and torrent hashes . If you are building a top set, you are expected to Google those hashes yourself.

Arcade games often use 6 buttons. Ensure your controller is mapped to handle the service and test buttons, which are necessary for changing game settings (like difficulty or "Free Play"). 5. Troubleshooting Common Issues

Use a ROM manager like Clrmamepro or Romulus with an updated Flycast DAT file. This scans your set and renames/rebuilds it to the "Top" standard. If your rom names look like mvsc2u.zip (USA) and mvsc2j.zip (Japan), you have a top-tier, merge-ready set.

: A full ROM set for the Sega Naomi is substantial, requiring significant storage space. Organizing and cataloging your ROM collection can be a challenge.

A complete Sega NAOMI set is unique because the real hardware utilized two distinct storage mediums. Your digital "full set" will generally be split into two types of files: