I'm glad to see that the developers are checking in on this page.
Some suggestions I hope they will keep in mind for future developments. Let me say in advance that I actually like playing this game, or I would not bother commenting otherwise:
1. I actually bought enough kobans and rolled the koban pachinko x10 twice (I had gold leftover from playing Pero Pero before, but I've quit that). I feel rather cheated as it advertised "exclusive" girls. I don't know how you guys interpret this, but I read "exclusive" as not being available elsewhere. I got Arcana and the alpha girl from the ninja boss. These are not "exclusive" by any stretch of the imagination, seeing they are drops from the bosses. Either change your advertising or actually put in some girls that are not dropping from the bosses. Had I known these girls dropped from the bosses, I may not have spent koban here.
2. The game is unfriendly for mobile devices. I use Puffin for my iPhone and iPad. Puffin refuses to open the page on my iPhone, saying that I should play from a browser. On my iPad, Puffin plays fine but I am unable to do "scrolling" to collect cash from the harem girls. Please try to address this or better still, make the one-button collection from all girls free instead of costing 2 kobans (i mean WTF? the first few times I thought it was to collect the cash AND 2 free kobans)