To unlock Apple Game Center Achievements, complete the following tasks!

Achievement	How to unlock
1,500,000 Points	Score at least 1,500,000 points.
10 Min.	Play for at least 10 minutes.
128x Bonus	Get a 128x multiplier.
15 Min.	Play for at least 15 minutes.
16x Bonus	Get a 16x multiplier.
2,000,000 Points	Score at least 2,000,000 points.
2x Bonus	Get a 2x multiplier.
32x Bonus	Get a 32x mulitplier.
4x Bonus	Get a 4x multiplier.
5,000,000 Points	Score at least 5,000,000 points.
64x Bonus	Get a 64x multiplier.
8x Bonus	Get a 8x multiplier.
Bomb	Use a bomb.
Connect A Pipe	Successfully connect a pipe.
Escape From Danger Zone	Escape a nearly game over situation.
Highscore, Yeah!	Earn enough points to make the high score list.
Number 1!!	Reach Rank 1 on the high score list.
Pipe Builder 25	Build a pipe with 25 or more pieces.
Pipe Builder 30	Build a pipe with 30 or more pieces.
Pipe Builder 35	Build a pipe with 35 or more pieces.
Time Bonus	Connect a pipe to a Time Bonus pipe.