http://shmuplations.com/dariusii/
These two interviews cover the development of Taito’s high-spec ultra-wide shooting game, Darius, and its hotly-anticipated sequel, Darius II. In both interviews, the developers outline their ambitions to wow players with a combination of indomitable audiovisual finesse and hordes of unique, show-stopping bosses, many of which weren’t able to be realized in the original game.
I’ve also translated and appended a scan of the first chapter of the promotional “Darius Story” comic mentioned in the interview, which ran in the April 1986 issue of Gamest – click each image to view at full size. I'm not aware of further chapters being released in Gamest, but if I ever find more, I will be sure to add them!