Complete the following tasks to unlock Apple Game Center achievements.

Achievement	How to unlock
Lakeside Defend	Finished Manual mode in normal mode.
Mega Pig Hunter	You needs shot down 1001 pigs!!!
Pig Hunter	You needs shot down 101 pigs!
Platinum Pig Hunter	You needs shot down 10001 pigs!!!!!
Super Pig Hunter	You needs shot down 501 pigs!!
Survival!!!!?	Survive 30 waves in endless mode.
Survival!!!?	Survive 20 waves in endless mode.
Survival!!?	Survive 15 waves in endless mode.
Survival!?	Survive 10 waves in endless mode.
Survival?	Survive 5 waves in endless mode.
Tower Defend	Finished Tilt mode in normal mode.
Ultra Pig Hunter	You needs shot down 5001 pigs!!!!
Village Defend	Finished Six Cannons mode in normal mode.