Is there also a way to not become a dickgirl, perchance?
There will be a way to become a full girl. But you start as a boy then gain breasts, hence dick girl.
EDIT: in OU-R is actually really easy to become a girl iirc. Just lose to a boss.
If you lose to a boss, does that mean that it's only for a scene before you get a game-over, or do you stay as a female and can keep playing as one?
Keep playing as a female. It was controversial at the time, thats why in PW you get to be a dick girl longer. But if you want to play mostly as a full female, them play OU-R.