Collide World

Ball will change color when collide with wall.
Black will be Red,then Green,then Blue,and finally be Aqua.
Make two balls have same color before collide with each other.

If still do not understand,you can press the T button to watch the tutorial.

Thanks for you support and wish you have a good time.
Amazon:http://www.amazon.com/gp/product/B00V07PAXE
Appstore:https://itunes.apple.com/us/app/collide-world/id976884010?l=zh&ls=1&mt=8
Google Play:https://play.google.com/store/apps/details?id=com.soleil.a032a
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