Very strong game in terms of both aesthetics and mechanics. It is a demo, I found roughly two hours of playtime. Twilight Tower is similar but also very distinct, if you enjoy one you will likely enjoy the other.
I did encounter a significant bug (2/10/24):
On the second turn after completing the 200 pt level, the game freezes. This also happened when I died and started over on the 200 pt level. So if there's anything past that level, I haven't seen it.
Also keep in mind that there is no save as it is a demo, if you close the game you'll have to start over. Other than that the game felt polished, I didn't run into any seams and the art is lovely.
Overall, it's very promising. I hope the devs keep up the good work and that it gets more coverage/attention.