One heck of a movie,
I rather enjoyed the original Nightmare City and NC: Catastrophe, so you can probably imagine my delight when seeing that someone else had made a tribute to those two movies. And my delight was even greater after the movie, because it certainly lives up to the reputation established by the originals.
PROS:
Definitely as well animated as the original Nightmare City movies, and with a more complex plotline. In those two movies, nobody who was unfamiliar with 2ch SJIS characters would know who the characters were, and while it didn't really hurt them, it was nice to know some names to attach to the faces.
CONS:
403 Forbiddena's music fit the original two better than the song here fits this. Also, it wasn't quite as much action in this one as storyline, so it was definitely missing some of the action-oriented scenes of the original.
OVERALL:
Lives up to the original two movies in almost every way.
5/5, 10/10, favorited.