I've been following the development of this game for a while, and after playing the full release I must say this is definitely one of the best expansion focused games I've played. The Papers please formula of gameplay and premise is a perfect fit for the fetish, and even putting aside the whole big boob/TF appeal the game is really charming with unique gimmicks almost every day and its ensemble cast of fun characters.
I loved a lot of the little storylines you saw, and some of them were especially hot like the girl whose lips grew whenever she lied and the bimbofication gum. And of course any scene with the player getting TFed was absolutely peak.
Endless mode having a bunch of items from the main story integrated into its gameplay loop was a pleasant surprise. I saw you say that there aren't currently any plans for more content, but if you ever do return to the game I'd love to see even more items/modifiers added to endless mode, maybe even including new TFs not seen in the story mode?
There is one issue I'd like to bring up, since it's fresh on my mind (beat the game about an hour ago). On the final day, I got confused at the finale, right before the sorceress blasts you with her gawkers. Even with the in-game hint being "the answer is always boobs" I ended up needing to retry it about 5 or 6 times or so, simply because you have so many options available to you at that time to grow your breasts that I didn't know which one is the correct one, and the tip jar was the last thing on my mind. Granted, it was a fair few months since I last played the game, so maybe I would've figured it out faster if I played through everything in one go and remembered it existed. I just think this should be mentioned in the online walkthrough or something, since the guide goes straight from the Bee potion answers to telling you which items to use to counter each attack from the mech, which kinda just confused me further.
(I was also able to stop the gawkers by using the cowbell, but this didn't work every time, and I'm unsure if this was intentional. On the attempts where I did use it and it worked, I completely forgot about the counterspell as well, meaning I was unable to see squat, which again is another fault on my end lol. Just wanted to mention this in case the cowbell passing the trigger is an unintended bug.)
But in the grand scheme of things, that was really just a slightly frustrating hiccup, and I still love the game a lot. Expansion games are filled with games that either waste your time with pointless grinding or are simply AI slop nowadays, so being able to follow the development of a genuinely good and unique one was definitely a treat.