Yo this is a really great concept! And I love the artwork you made too, it all looks really nice and fits together!
Based on your page it looks like you're still new to development and using unity, and keeping it simple like this was a great idea that I think paid off pretty well! The mechanics work well, and obviously sound still needs to be added, but that's something you can implement in your next project now that you've learned how to do all this =)
Keep up the good work man!