I like the concept.
The battlefuck system isn't very well developed. The left/right inputs seem to move the cursor a random amount, at a random speed. At first, I thought that as you leveled that attack type (anal,oral, etc.) it would give more precise movements. It did not. It also seems like the size of the green area is randomized.
The roaming part of the game, where you move from room to room, is nice. Finding useful items is a nice idea. No idea what solving the sliding picture puzzles do, as it did not change the text on the opposite page. Seems very unrewarding.
I do not know if hiding actually does anything, since even when the screen was red to say the succubus was close, she did not show up.
There are some neat ideas here. The implementation needs to be polished.
Art is good, except for her handjob attack. Her eyes are too big in that animation. Everything else is fine. Hot model, hot animations. I would like to see more animations, but it's not the main priority.