I have not finished playing, but I'm actually having too much fun. I daresay this is the funnest game I've played so far and this game has lots of potential. The only critique I have is that the hearts should move more smoother (less jittery) but its not a big deal for this version. I would love to see a final version of this with multiple animations, characters, quirks, more heart types. etc. The falling algorithm is done very well and i love the different heart types. You should 100% build upon this, amazing job Psy. I actually want to see where you go with this in the future so I'll follow your itch page. Thank you for the fun experience. If you want to drop more details about your plans/inspiration that would be really cool.
Beautiful idea, beautiful design, high potential.