Never played around with Konami's synthesizer, but if it does not have lots of text, maybe the ROM is actually the same but only detects the country and changes the language accordingly?
This is how wast majority of Konami games (which are localized) work. I believe Metal Gear is the only exception to this rule (and a lot are English-Only, while Snatcher, SD-Snatcher and Metal Gear 2 are Japanese-only EDIT: and Majutushi and possibly some other games; but only Metal Gear has two distinct versions).
Never played around with Konami's synthesizer, but if it does not have lots of text, maybe the ROM is actually the same but only detects the country and changes the language accordingly?
This is how wast majority of Konami games (which are localized) work. I believe Metal Gear is the only exception to this rule (and a lot are English-Only, while Snatcher, SD-Snatcher and Metal Gear 2 are Japanese-only EDIT: and Majutushi and possibly some other games; but only Metal Gear has two distinct versions).
Actually... also Antarctic Adventure has both a European and Japanese versions of the ROM and so does the original Game Master.
Manuel: For Antarctic Adventure, when you get the map of the south pole which is written in Japanese (and has a different Konami logo). While the European version it says "S.Pole". There may be other differences...
For Game Master it is the title screen which is different.
These differences are independent of the MSX used (European or Japanese).
