"The Maze of Galious is often considered by many MSX fans to be one of the most beloved titles on the PC".
I got confused at first when I read "PC". Of course the MSX is a PC technically but the term is used nowadays for something else. Perhaps change it to "most beloved titles on that computer". Otherwise awesome guide!
Majou Densetsu II: Galious no Meikyuu (lit. Demon Castle Legend II: The Maze of
Galious) is a side-scrolling action adventure game produced and released by
Konami on April 18, 1987 for the MSX Personal Computer in Japan.
I would not say it's side-scrolling (although the Famicom/NES port is). Also, the terminology at the time was "arcade adventure", although I'm not up to speed with current terminology to describe games.