Thank you for your review! You are right, the game demands you to earn the right to nut.
I'm glad to hear you didn't encounter any bugs while playing.
I think most of the struggles from this game comes from the lack of a tutorial, just explaining things in the description of the page is not enough.
The game is more like a dance; the attacks are all patterns, they aren't random, once you know the strategy you win.
I'll be working on the game and adding 6 more harpies and an ending.