| Achievement | How to unlock
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|---|
| Alien Maggots are Gonna Pay | Finish the "Hollywood Holocaust" level in under 3 minutes.
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| All Too Easy | Find a secret area.
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| Buzz Off | Kill a Firefly Trooper while it's flying small.
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| Cheating! | Use a cheat code.
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| Come Get Some | Complete "Shrapnel City" on any difficulty.
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| Damn, I'm Good | Complete "The Birth" on any difficulty.
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| Doomed Marine | Find the Doomguy in the Level "Death Row".
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| Duke's Mighty Foot | Step on 40 enemies after using the Shrinker on them.
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| Duke, Use the Force! | Find Luke in the Level "Lunar Reactor".
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| I Never Inhaled | Use the hookah in High Times.
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| I Never Knew This Was Here | Find any secret level.
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| I'm Back, Baby | Complete "Alien World Order" on any difficulty.
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| Invaders Must Die! | Kill 1000 enemies.
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| It Happens | Step in a pile of excrement.
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| Let's Rock | Complete "Lunar Apocalypse" on any difficulty.
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| More Than 2 Weapons At Once? | Carry all weapons with ammo at once.
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| Nukem All | Kill 5 bad guys with one shot.
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| Oomph, Uugh, Where Is It? | Find 70 secret areas.
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| Piece of Cake | Complete "L.A. Meltdown" on any difficulty.
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| Rage Engage | Kill 10 bad guys in 10 seconds while on steroids.
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| Roast 'Em | Burn 50 bad guys to death.
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| See, I'm Tough Too! | Finish any level on "Damn, I'm Good" difficulty.
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| Shake It, Baby | Tip an exotic dancer.
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| Smoke 'Em If You Got 'Em | Use the Incinerator
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| Take No Prisoners | Kill every enemy on a level.
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| That's What She Said | Listen to Developer Commentary (Use at least one trigger).
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| Why So Serious!?! | Find Sam in "Mirage Barrage".
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