This was better than I thought. I knew it would be too easy to have more than on life. It does seem fair to me. I did have a problem with how it didn't have much variety. Well, at least it was easy to understand. I compliment that in games too much. The sound effects are really cool.
It's nice how precise it is. You know when you've made a critical error. I don't see what this has that much to do with exploring. I have played games that used the theme better. While I wouldn't recommend it, it wasn't bad.