| Achievement | How to unlock
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| 1UP! (20 points) | Level up during a stage.
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| And you, Brutus? (20 points) | Kill your partner.
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| Barrel Master (50 points) | Create a PWNAGE of your choice with a barrel.
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| Chaaaarge! (20 points) | Charge Cye's Boost bar completely and use it.
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| Chrome The Builder (50 points) | Reach the limit of built turrets in a stage.
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| Chrome the Destroyer (20 points) | Charge Chrome's Boost bar completely and use it.
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| Critical Mass (20 points) | Finish a stage with critical health level.
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| Cye-pper (50 points) | Reach the limit of planted traps in a stage.
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| I'm a Big Boy now! (50 points) | Compete a level without building turrets.
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| I've Got The Power! (50 points) | Buy all upgrades of a single power.
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| Last Man Standing (20 points) | Finish a stage when one character is down.
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| Master Engineer (120 points) | Buy all upgrades to all the turrets.
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| Overpowered (50 points) | Compete a level without buying powers.
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| Rise, Lazarus! (20 points) | Respawn your partner.
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| The Beat-em-alls (150 points) | Beat all levels.
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| Three-Way Pwnage (120 points) | Create at least one PWNAGE of each kind during a stage.
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| Turret Syndrome (50 points) | Buy all upgrades of a single turret.
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| Unlimited Power! (120 points) | Buy all upgrades to all the powers.
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