A collision based soccer game app for iPad and iPhone

This is a simple game to develop for an experienced game developer. Project Details: 1- The game is a multiplayer game playable on a single device and over game center. 2- Imagine a wood in the shape of a soccer pitch. And the users can drive nails on it as a soccer player for the game, or can choose "randomly place nails" choice. 3-The game starts in the middle of the pitch after deciding the first player via a flip of a coin sided as 1 and 2. 4- Furthermore, the ball itself is a coin to hit/swipe in order to score. 4- Then the player that is her/his turn in the game just have a chance of 3 swipes to attack. Nails(Players) on the pitch are static throughout the game. 5- When a player scores a pop-up should appear to show the scoreboard. 6-The game is over when a pre-specified score is achived. 7-In the collision of a nail and the coin (ball) a collision sound should be. 8-Since at the top view the nails are seen as a point, the players should have the ability of go up and down to see like 3D when attacking behind the goal. Other details can be talked via PM. Please see the attached file to see amateur drawings and other stuff. The game can be enhanced through the time. The first payment will be made when a progress is seen. The full source code will be submitted at the end. This is a low budget project but please be aware that we have many (about 15) upcoming mobile app developments, and the successful candidate can look forward to high volumes of future work. Please bid the project with a tag #Fenerbahcecokyasa to let me know that you read all the post and look the attached files.