It's been a long time since I played the Flash version, but the graphics seem the same (except lower resolution). Mostly just untextured polygons.
I've only checked out Crimson Room so far, so the other rooms might be different, but I'm guessing it's as straight a port as possible. Crimson Room may be cool, but this release is still basically shovelware.
BTW, anyone played a Flash Based game where THeres this guy who trips on a bike then Flies up and down. and theres these girls that punch him with supers that go farther?
There is a lot of text (mainly item/environment descriptions), and it's all Japanese. It should still be playable, but it will require more random trial and error.