Complete the following tasks to unlock Apple Game Center achievements.

Achievement	How to unlock
Assassin ( 20 points )	Complete a level in less than 3 seconds.
Be Cool ( 30 points )	Freeze 50 stars in total.
Be Water ( 30 points )	Complete a level without removing your finger. Min 3 slashes required.
Blade Runner ( 20 points )	Get 5 extra blades in a level.
Bomb Squad ( 10 points )	Destroy a Doomstar with a bonus.
Bomber ( 30 points )	Use 5 bomb bonuses in a level.
Bonus Master ( 30 points )	Get 100 bonuses in total.
Clean Slasher ( 20 points )	Complete a level without hitting any metal edges.
Combo Master ( 30 points )	Slash 5 pieces greater than 5% in a row.
Comet Killer ( 10 points )	Destroy a comet with a bonus.
Crazy Slasher ( 30 points )	Make 5000 slashes in total.
Crowd-Pleaser ( 40 points )	Complete a level after Doomstars explode.
Dedicated Ninja ( 30 points )	Play the same level 50 times.
Flying Dagger ( 20 points )	Complete a level before Doomstars explode.
Frozen Hell ( 50 points )	Freeze 150 stars in total.
Ghost Hunter ( 30 points )	Complete a level when ghost stars are invisible.
Iron Slasher ( 20 points )	Slashed away all the metal edges.
Monk ( 70 points )	Get 500 bonuses in total.
Nameless Hero ( 10 points )	Fail when remaining area to slash is less than 1%.
Need No Toys ( 30 points )	Complete a level without using any bonuses. Get minimum 3 bonuses.
Over Slasher ( 20 points )	Slashed away 10% more than required.
Perfect Technique ( 30 points )	Slashed away more than 50% in a single slash.
Psycho Slasher ( 60 points )	Make 10,000 slashes in total.
Sleepless Ninja ( 50 points )	Play the same level 100 times.
Super Slash ( 20 points )	Completed a level with a single slash.
Tactical Initiative ( 20 points )	Get a bonus with your first slash.
Talented Ninja ( 30 points )	Get a bonus with every slash. Get minimum 3 bonuses.
Time Bender ( 30 points )	Complete a level while Buddha bonus is active.