Hey man, I liked your game so much Thanks for the source code too. I want to change a it more and make another game. If that's Ok with you?
Definitely do; i would just ask you to mention whenever you used portions of my code. The source is quite old, though, and will probably need many changes to work with current versions of Unity. If you need any help to figure how something works, feel free to send me an email (suribe [at] perroelectrico [dot] com).