Wow, this was a great game! The art is adorable and it looks really polished. Thanks for creating this!
However, I found the music in the second stage a little odd for some reason.
What exactly was the idea behind the life system? As far as I see hitting an enemy costs 1 heart, falling into an abyss costs a life without refreshing hearts. Game is over if I run out of hearts or lives. However, this looks a little weird, I would have expected that I lose a life when I run out of hearts and game is only over if I run out of lives.