It was a nice game, fun to play.
I agree with Bryce , some song when you attack an enemy would be good.
More diversity in enemy and sacrifices.
More room and more weapons.
But for a jam with 10 days, it was a good game, I liked it ;)
I had a lot of ideas to add in terms of diversity in both enemy and sacrifices, unfortunately, I required more time to build the proper functionalities/behaviors!
My idea would be to have not only more types of enemies (including a final fixed boss), and a total of 8 different stats and 8 different skills. In the end, I only added 4 possible stat changes. I also wanted to add 10 different rooms with different sizes and environments (objects in the middle, etc.), however, that would require a better AI behavior as well as more time in designing the rooms :D
Appreciate the compliment and I have to admit that I did better than I expected ahah