Complete the following tasks to unlock Apple Game Center achievements.

Achievement	How to unlock
Big Dodger (100 points)	Dodge all stones in 3 minutes.
Bird Hunter (100 points)	Hit 100 Birds.
Dodger (50 points)	Dodge all stones in 1 minute.
Gold Miner (100 points)	Collect 100 coins.
King of Sky Dodge (Bronze) (10 points)	Reach 5,000 score!
King of Sky Dodge (Gold) (30 points)	Reach 10,000 score!
King of Sky Dodge (PLATINUM) (100 points)	Reach 20,000 score!
King of Sky Dodge (Silver) (20 points)	Reach 5,000 score!
Kite Lover (100 points)	Hit 100 Kites.