Complete the following tasks to unlock Apple Game Center achievements, all of which are secret.

Achievement	How
1,000,000 Points! (75 points)	Get 1,000,000 Points.
10,000 Points! (10 points)	Get 10,000 Points.
50,000 Points! (50 points)	Get 50,000 Points.
Clear 100 Stages (75 points)	Complete at least 100 stages.
Clear 1000 Stages (100 points)	Complete at least 1000 stages.
Clear 20 Stages (50 points)	Complete at least 20 stages.
Clear 5 Stages (10 points)	Complete at least 5 stages.
Crazy! 100,000,000 Points! (100 points)	Get 100,000,000 Points.