Agreed with the others, this feels great!! very polished overall. The music fits like a glove, as well as the SFX choices.
I like the addition of making it harder by consuming more hearts as it goes. I think the star of the game is the visuals for me, I love the cat walking around I wish I could pet it! I can see this being a great base to add more ideas and mechanics onto. (Maybe the cat starts messing with your pieces by swapping them around...as cats love to do?).
Great stuff tho! Congrats on a successful jam