Did you figure it out?
I can't get past the initial phase/area and not only is the UI really bad but I have no idea what to do or why.
Probably the best spanking hentai game currently available. Just 2 things and it becomes perfect.
1. Make the combat system a bit better. WASD movement, click to shoot/aim.
2. Just more variation in the girls' and an overall increase in the art.
After that I don't see a way this game could get better.