Duke Nukem 3D: 20th Anniversary World Tour (Xbox One)

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Cheat menu

To open the cheat menu, which has all the classic Duke Nukem cheats available in it, do the following at any point during the game: Press Down, X, R3, Right. Make sure to use the D-pad for the directionals and not the stick.

Easier final Boss

If you have a jet pack, fly up and destroy the beer blimp. Guns and health will scatter on the ground, allowing the final Boss to be killed easier. Note: One of the best weapons to use against it is the Devastater.

Easy "Alien Maggots Are Gonna Pay" achievement

Play Episode 1: Mission 1 - "Hollywood Holocaust" on the easiest difficulty. From the start of the mission, fall down the ventilation shaft, and run directly to the alley behind the movie theater. Use the pig cops as platforms to jump onto the small lip running along the wall. From there, go to the bridge. Once on the bridge, run past the pig cop and end the level to get the "Alien Maggots Are Gonna Pay" achievement.

Easy "Oomph, Uugh, Where Is It?" achievement

This achievement can be earned through normal progression, but you can grind by repeating the same mission multiple times. The achievement counts secrets found across all playthroughs rather than the number of unique secrets discovered.

Easy "Shake It Baby" achievement

The first time that this can be done is during Episode 1: Mission 2 - "Red Light District". Enter the strip club, walk up to a stripper, and press [Interact] to get the "Shake It Baby" achievement.

Secret level in Shrapnel City

Go to the Hotel Hell level, then go to the fountain by the pool. Step through the waterfall, then go behind a bush. You will see a radioactive waste sign like the ones that mark the end of a level, except it is gray. It will take you to the secret Freeway level.

Tier Drops level in Shrapnel City

There is a tenth level in Shrapnel City called Tier Drops. To get there, go to the movie level, and go to the stage with the NASA sign and the body parts with a telescope. Kill the alien with the chain gun, and press [Use] on the sign. A door should appear with the caution sign that ends the level. Do not go to the stage with the ship or this will not work.

Various Achievements

Complete the following achievements to unlock Microsoft Gamerscore points.

AchievementHow to unlockPoints
Alien Maggots are Gonna PayFinish the "Hollywood Holocaust" level in under 3 minutes.40
All Too EasyFind a secret area.15
Buzz OffKill a Firefly Trooper while it's flying small.15
Cheating!Use a cheat code.15
Come Get SomeComplete "Shrapnel City" on any difficulty.80
Damn, I'm GoodComplete "The Birth" on any difficulty.80
Doomed Marine (secret)Find the Doomguy in the Level "Death Row"15
Duke's Mighty FootStep on 40 enemies after using the Shrinker on them.40
Duke, Use the Force! (secret)Find Luke in the Level "Lunar Reactor"15
I Never InhaledUse the hookah in High Times.15
I Never Knew This Was HereFinish a secret level.15
I'm Back, BabyComplete "Alien World Order" on any difficulty.80
Invaders Must Die!Kill 1000 enemies.40
It HappensStep in a pile of excrement.15
Let's RockComplete "Lunar Apocalypse" on any difficulty.80
More Than 2 Weapons At Once?Carry all weapons with ammo at once.40
Nukem AllKill 5 bad guys with one shot.40
Oomph, Uugh, Where Is It?Find 70 secret areas.40
Piece of CakeComplete "L.A. Meltdown" on any difficulty.80
Rage EngageKill 10 bad guys in 10 seconds while on steroids.40
Roast 'EmBurn 50 bad guys to death.40
See, I'm Tough Too!Finish any level on "Damn, I'm Good" difficulty.60
Shake It, BabyTip an exotic dancer.15
Smoke 'Em If You Got 'EmUse the Incinerator15
Take No PrisonersKill every enemy on a level.40
That's What She SaidListen to Developer Commentary (Use at least one trigger).15
Why So Serious!?! (secret)Find Sam in "Mirage Barrage".15