That's mostly because Konami (#FucKonami, BTW) lost the source-code for the final release and only had a "beta" copy, from what I remember.
Japan (and America, I guess) in the 90's-00's would totally toss out hardware and drives without archiving. It's why the "Archiving of Video Games" is so important but getting stomped on by EULA's and DRM.
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That's mostly because Konami (#FucKonami, BTW) lost the source-code for the final release and only had a "beta" copy, from what I remember.
Japan (and America, I guess) in the 90's-00's would totally toss out hardware and drives without archiving. It's why the "Archiving of Video Games" is so important but getting stomped on by EULA's and DRM.