Okay firstly; Tutorial. Put one in. Or at least a better one than you've got here. Nowhere does it explain that running out of ammo stuns you. Nor is there any indication that masturbating restores your max energy. I could go on there's so much more that needs explaining.
Secondly; there's so much waiting in this game. Why does your ammo return so slowly. I get that you want to make sure they can't just shoot infinitely but I've exited the room and reached safety, but I can't go back in to combat until I sit and wait for like 2-3 minutes doing nothing while my ammo regens... You've also got to wait for the chair to remove any pregnancies, you've got to wait for masturabation to restore your health. It takes too damn long!