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The World is Safe For Now
Complete the game once
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 10
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|
True Hero
Survive for 5:00 in Survival Mode.
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|
 25
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|
The Fast Lane
Complete the game in less than 3 hours
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|
 20
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|
Ala Carte
Complete a level without collecting any health or energy items
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 20
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Key Master
Collect all keycards
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 20
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Playing with a Full Deck
Unlock all alien forms by beating levels 1-10
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|
 15
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|
Unscathed
Defeat any level without getting hit
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|
 10
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|
A Hero's Workout
Defeat 50 enemies
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|
 10
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|
A Hero's Marathon
Defeat 300 enemies
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|
 15
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|
No Time to Waste
Post a time on all level leaderboards.
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|
 20
|
|
Versatility
Harm the final boss using each alien before delivering the final blow.
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|
 15
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|
All Powered Up
Collect all energy and health extenders
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|
 20
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