Neat little concept. I'd say the speed at which characters deplete is maybe just a bit too quick. I felt like 4 stars was easy enough to get, but I don't know if I even came close to 5. (Maybe I am just terrible, though, haha).
I don't know that there's a restart button, so closing and restarting meant retrying was difficult, which means I didn't spend as much time with it as maybe I should have, but I enjoyed getting to see 4 out of the 5 screens. Lots of character in such a little game.