Solid WIP, good amount of art for a first release, just remember that RED = NO CONTENT and gray doesn't mean "grayed out".
I repeat, the gray buttons are the ones with the content.
Ran into a glitch or two in which an option looped, but I didn't think to pay attention to when it happened, so I can't report it as a bug.
As for transformations, there's a few so far, though some will require you to hide the chat box to see it, (though I don't remember how you do that in Ren'Py, I think it's a hotkey?)
Lots of boobs, that's for sure, plus some other transformations; a quick run through the game had her turn tremendously busty and making a big milky mess, and another quick run turned her into some kind of kawaii space princess of happiness (with giant breasts of course), though I didn't read the text as much as I should've.
Also, it's hard to call it a "VN", it's more of a straight-up CYOA, there's no exploration, no stats, just a tree of options to pick through and reach the end of. That's not a bad thing, but I assume some people might get confused.
It's just, like, "her boobs grow bigger -> her hips grow to match size -> she grows curvier -> her clothes change -> she grows taller" and each option spits out a new image of her in her new form as she progresses.