Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Killed Boss (12)	Killed Boss
Wave 10 Cleared (12)	Wave 10 Cleared
Wave 100 Cleared (10)	Wave 100 Cleared
Wave 15 Cleared (12)	Wave 15 Cleared
Wave 20 Cleared (12)	Wave 20 Cleared
Wave 25 Cleared (12)	Wave 25 Cleared
Wave 5 Cleared (10)	Wave 5 Cleared
Wave 50 Cleared (10)	Wave 50 Cleared