If you can't unzip it on your phone, do it on your computer and then transfer the apk-file to your phone, then run the apk. There's no parsing on your part. That's done automatically by the compiler.
Total Commander is a free file tool for Android that can also zip and unzip files for you.
Personally, I think the concept of the game is very interesting. It feels a bit dangerous and that's awesome.
Please don't listen to people spewing nonsense about greed on a $5 game. The fact that you're taking the time to make this and gamble on it's success should be lauded, not criticised.
