Hi,
I have 3 of the games listed for master system (1, 11, 14) included in my eBay bundle if you're interested
https://www.ebay.co.uk/itm/155118948778?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=my1M4GUIQo2&sssrc=2349624&ssuid=my1M4GUIQo2&var=&widget_ver=artemis&media=COPY