Ahoyhoy! I agree with Rachel
There should be a section to add Sega Mark III / Sega Master System [JP] games to the database. The Mark III (which is the same hardware as the Master System without the Japan-only built in FM synthesis module) runs all games from the previous SG-1000 series. Now here is my question, should the cartridge and rom card games be included under the same section?
The Sega SG-1000 and SG-1000 II should be listed under their own, combined category for hardware as they are technologically different from what became the Master System. (Which is why no backwards compatibility)
Perhaps the section could be titled "Sega SG-1000 Series Hardware"...
I was about to add my 2MB Gold Cartridge of Out Run for the Mark III to the database when, alas, there was no appropriate section to be found. Doh! ^^;