Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Bulletstorm	Fire 100,000 Rounds in Total.
City Slicker	Beat Boss 4-5.
Clear Skies	Beat Boss 1-5.
Culled	5000 Enemies Destroyed.
Master of the Universe	Beat Boss 5-5.
On Time, On Budget!	1st Level Complete.
Skyscraper	20 Level High Hotel.
Surf and Turf	Beat Boss 2-5.
Tenement	10 Level High Hotel.
Thrifty Builder	Finish Level With Over $2000.
Toothless	Beat Boss 3-5.
Top Trump	2000 Rooms.
Trigger Happy	Fire 500 Rounds in a Level.