Complete the indicated task to unlock the achievement.

Achievement	How to unlock
At Least Their Single File (10)	Complete 1,000 Rounds.
Captian Spelunk (10)	Completed Cavern Levels.
First Level Completed (10)	Taken Your First Step.
I Almost Broke A Sweat (10)	Completed Hard Challenge.
No Charity (10)	(Secret)
No Yellow Snow (10)	Completed Winter Levels.
Not So Tough (14)	Kill 100 Major Bosses.
Oops... (14)	Blocked The Path Of Enemies (Secret)
So That is That I Guess (10)	Completed All Single Player Achievements.
Still Didn't Need Them All (10)	Completed Tower Limit Challenge.
Stomped Spring Flowers (10)	Completed Spring Levels.
They Called For Backup (10)	Completed Continuius Challenge.
Thinning The Herd (14)	Kill 100,000 Enemies.
Who Needs The Internet Anyway (10)	Completed Four Player Split Screen.