Following feedback, I've gone through and taken out some of the bugs that were causing problems. At the moment I'm re-uploading to Megaupload.com, then I'll place a new download link. I've fixed the sound problem some people were having and replaced some missing files, as well as a few other things I found whilst testing. In the meantime, there's a few points I've noticed:
-When playing as the Fashion Gal, in the onsen you have to press "D" to leave, not "Z"
-there's a problem with a missing sprite as well as a mission glitch with Nao in the Maid cafe. Actually, it is possible to finish the game without killing all the Evil Spirits, so you should still be able to continue.
-There's a problem with a Student sound file when talking to Mirai the elevator girl, meaning you can't complete her mission. Again, it should be possible to complete the game without this one.
-If you use Fashion Gal's Parasite Single attack she disappears from the game map (she becomes invisible).
If there's any other bugs please let me know. I hope to have the fixed version up this afternoon. Sorry! ^_^