Android Zombieville USA type Game (Demo)

I am looking for a demo / prototype of a 2D game that I will eventually release on Android and IPhone. I am learning Unity3d now myself but wanted to buy this prototype as a starting point since I am very new to all of this. The completed game must consist of the following: Menu Screens Main Game Level - this will just get harder and harder as you go up in levels Multiple Characters/Weapons/Enemies Parallax Background Sound Effects/music (I can replace these sounds later.) I have a particular theme in mind. I will give the winner details at project start. Feel free to PM me for further details. I would like an android apk delivered as well as all source so I may continue to add to improve and learn from the game. The Zombieville USA game is very similar in style to what I am looking to do. There are some blogs that talk about how they accomplished this on the internet. Of special interest is the way they create the characters in Maya, then pull them into unity. I really want to achieve the same cartoon type look. My budget is small as this is only a hobby project for me. I was going to pick the 30-250 range but wanted to get as many offers as possible. But I am sure the right candidate can do it quickly and easily. Once I am completed with adding to the game I may publish it, or will hire someone to complete it, so It may result in more work for the candidate.