I'm back home in Hawaii, but while in Taipei I did manage to visit the Ximen district, and there was an arcade there (can't remember the name, will have to ask my wife, probably the one inp mentioned) on the 5th floor of a tall building that had Futari 1.5 and Daifukkatsu BLACK LABEL. I was really surprised to see the latter. I played about 4 credits, and it being my first time with the game, I was pretty excited. I also played a credit of Futari, but the stick felt mushy (pun intended) and the buttons weren't 100% accurate. High score was 760+mil, though, which is pretty damn good. All the Daifukkatsu BL scores were horrible, I beat one in the second stage and I was playing like crap. Maybe they just got it in. Also, on the 2P side the C button didn't work. Anyway, this arcade was also non-smoking, which is a HUGE plus in my book. They had some other STGs, such as Raiden II, and PGM2 beat'em ups, and 1000 fighting games, as expected.
Couldn't find DDPDOJ Tamashii anywhere. Oh well.