Spacejacked
murderbits's Progress
We Survived
Complete Act 1
In the Nick of Time
Complete Act 2
Gung Ho
Perfectionist
Complete story without taking any hit to the cores
Hardcore
Beat wave 24 in Endless Mode
Survive without your Blaster
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Defeat the Shell Family
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Defeat the Slime Family
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Survive the Speedsters' Rampage #1
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Survive the Speedsters' Rampage #2
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Survive the Speedsters' Rampage #3
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Attack of the Giants #1
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Attack of the Giants #2
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Attack of the Giants #3
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Golden Slime Rush #1
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Golden Slime Rush #2
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Golden Slime Rush #3
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Invasion of the Body Snatchers #1
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Invasion of the Body Snatchers #2
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Invasion of the Body Snatchers #3
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Missile-toting Giant
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Attack of the Giants #4
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Jellyfish Battle
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Utter Chaos
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Mission Impossible
Beat the Impossible wave either in Challenge Mode or in Story Mode