Marth Debuted in Smash Bros.: As Steins;Gate wasn't released in North America until after this game, Kurisu Makise, Mayuri Shiina, and Itaru Hashida ALL made their North American debut in this game as 5pb's Skills.
No Budget: The first game ran out of money and was mostly unfinished. The second and third games were given a higher budget and received a warmer reception.
No Export for You: Sadly, Australia hasn't gotten any games past the first one. If an Australian wants mk2 or Victory, they'd have to import it.
Vicotry eventually got a very small print run down under, and all three games can be purchased from PSN.
One of Us: Katsuhiro Harada, the video game producer of the Tekken series likes Noire. And pretty much one of the main reasons why we even get Tekken in Hyperdimension Neptunia V (they couldn't get the Namco name so they had to settle for this).