Great work. I was pleasantly surprised by how polished it felt. Could you please speak to how you refined it before releasing it? Were you getting feedback on it from beta testers?
Hope that helps!
I was also fortunate enough to have the opportunity to learn programming at a young age, but I didn't understand user engagement until I was much older.
Best of luck to you. I'll be subscribing to your blog and following your ongoing programming adventures! And to reinforce other comments here, I would be interested in some "making of" posts.
PS- Great music. I love that you invested time in all the details like music and sound effects.