I'm DEFINITELY onto something. Kyoudai, Tonkinhouse and DEMPA couldn't have given the SAME speech to Dark Fact for no reason!!!
I can't literally understand every word said there, but it's VERY clear his speech is the SAME as the ones in the NES, Apple IIgs and DOS versions! (I'm not sure if in the X68000 version he still says the Goddess will be his reward, though. Anyone fluent in Japanese or so can answer me that one?)
And, in this one he mentions the Book of Gemma like the NES version did, and unlike the DOS/Apple IIgs versions (Book of Tovah).