Not being able to see the tile you're standing on is very artificial difficulty. Seriously, just make the bitch's head transparent and the game is infinitely more enjoyable. Don't even read the rest of this review, just go into the code and get rid of her fucking head.
Gallery unlocks are only achieved by beating each area, not by losing to an enemy; this means that there's no tangible reason to go back to the game once you've beaten it. Speaking of beating the game, you don't even get a CG for beating the game. You made a porn game and didn't give us porn when we beat it? Also, the gallery doesn't show any of the dialogue that comes with the game over scenes, meaning someone who wants to view the dialogue (because they're into noncon and that's why they bought this game) has to play through the game and HOPE they randomly die to the one enemy they want.
Somehow, you made me regret a purchase of 3 dollars. I can only hope your next projects are even marginally better than this one.