Game Center and few changes to existing app

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I have an existing puzzle app. I would like to have an update to it. Game Center needs to be added and four Levels. For more infos please contact me. I will send you promo code and job description.

Please only developers who have experience with adding game center and only developers who have time to start with project soon.

Skills required:
C++ Programming, iPad, iPhone, Mobile Phone
About the employer:
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