Develop a Mac Application

This project is for the build of an Angry Birds type iPhone/iPad game from a pre-existing iOS starter kit ([login to view URL]). The game has actually already been built from a previous project with 50 complete levels & full graphics using an older version of the starter kit. The game is fully working but I'm looking to include a number of modifications to it and new features. The original developers commitments are too busy to continue with this project. I've also acquired from the developer another similar game (built for iPad only). There maybe code snippets from this game that can be used to save time on my game. I'm also looking for the levels of this game to be merged into my game. I've attached the full job spec of what I'm looking for the game to do as part of these modifications. Please note, the first version of the game is already built and the foundation coding of the starter kit clearly explains how the game is coded which is the reason it's listed as 'very small project £250-£750'. The modifications I'm looking for are explained in the attached document. The successful developer for this project will need extensive iOS programming and need to demonstrate previous experience working with Cocos 2d and box2d along with other iOS app building skills using XCode. A Non-disclosure agreement (NDA) will need to be signed before the 3x project files are disclosed to protect the game starter kit developer and also the code of my version and alternate version of this game. Please get back to me with any questions you may have.