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