Well, Cave still seems to be supporting the 360. There are loads of Japanese Shmups on the 360. Akai Katana by Cave being one of the most recent releases. Also the Otomodius series is good if you're a fan of Gradius and it's spin-offs. Also, the obligatory Super Robot Taisen game.
I'm not saying any of those releases gave MS a chance in hell of selling the 360 in Japan. I'm just saying that there are some good Japanese-only releases that aren't dating sims/visual novels.
Also, just snaged Xenoblade: Chronicles, played for about an hour. Actually really liking it so far. I can't wait to get off work and play some more tonight.
