Customize an existing game

Closed - This job posting has been filled and work has been completed.

Job Description

I'm developing a simple game for young children to recognize basic math calculations.

I need to develop a simple IOS game based on this game code -
http://codecanyon.net/item/bee-copter-ios-uiview-game/5087479?WT.ac=category_thumb&WT.seg_1=category_thumb&WT.z_author=philips777

I need to make the following changes -
1. Modify the bee movement based on moving the device instead of tapping.
2. Get score if the bee catches a combination of flowers of a presented number and a negative score if it catches wrong number of flowers.
3. customize some graphics.

the engine and the graphics will be provided.

Please apply only if you have a proven track record in developing and publishing IOS games.

I need your quote for the complete end-to-end project as described above.

Thank you!