"I'm your worst nightmare, you uninvited alien scum-sucker! And right now you're all that stands between me and a planet full of babes - so get ready to bend over and kiss your ass goodbye!"

"I'm climbing a ladder........to heaven. [reference to Led Zeppelin's "Stairway to Heaven".]"

"Suck my dick you little alien fucks! (Note: "fuck" and "dick" are bleeped out.)"

"That hurt you more than it hurt me."

"Damn you're ugly!"

"The Bigger they are the harder they fall"

"New York! It's my kind of town. // If I can kill 'em here...I can kill 'em anywhere! / Reference to Frank Sinatra's song "New York" ("If I can make it there, I'll make it anywhere...") [just after door kick video sequences and player gets control over Duke Nukem]"

"Aaah, I love the smell of sewers in the morning. I bet Morphix is hiding under a turd somewhere. [when beginning E4L1]"

"Ahh, something smells rotten around here. [just before starting fight with boss at E4L3]"

"Ahh, that’s better! [in toilet just after the beginning of E3L1]"

"All aboard the Midtown Express... to hell! [when reaching trains at lower parts of E3L3]"

"You must be 18 or older to ride. [after rescuing a babe]"

"Babes, bullets, bombs... Damn, I love this job! [after rescuing a babe]"

"Batteries not included! [after killing a robot]"

"Call me now, for your free whipping! [when Duke receives a phone at E3L2]"

"Come on out, Morphix. There's only two ways this can end, and in both of them... you die! [before fight with Morphix's helicopter at E1L3]"

"Confucius say... Die! [before killing a monkey or Chinese enemy with 2 guns]"

"Dance for me, baby! [after rescuing a babe]"

"Death before Disco! [when Duke enters E2L3]"

"Die, bitch! [when duke shoots a female bot]"

"Don't get your panties all in a bunch. [during running into an office tower before door kick video sequence at game start and after rescuing a babe]"

"Don't worry girls, there's plenty of Duke to go around. [after completing the game]"

"[beep, beep, beep] The number you have reached: 9-1-1 has been changed to a non-published number. [when Duke receives a phone at E3L1]"

"End of the line - last stop: Total destruction! [after defeating the boss at E4L3]"

"Gotta find the exit now. [after rescuing the babe first and finding the key]"

"Guns don't kill mutants? I kill mutants! [after killing any mutant]."

"Half man, half animal, all dead! (Reference to Robocop: "Half man, Half machine, all cop") [after killing a mutant]"

"Ooh, careful with those things! [after rescuing a babe]"

"Hey, I know this classy place where you put quarters into the bed and... [after rescuing a babe]"

"Hmm, that stuff doesn’t look bio-degradable [when reaching GLOPP barrels at E1L2 in the interior section, before window cleaning platforms]."

"Hmm, so there is life after death... [after respawning]"

"Hmm, no lights... must be part of Morphix's energy conservation plan. [at E5L1 when following little blue lights]"

"Hmm... the other white meat. [when Duke spots a pig cop]"

"Hmm, wonder what this does. [when attempting to solve light riddle at E5L2]"

"I always said, if there was a way to go, it'd have something to do with women, whips, and oil... Let's rock. [before encountering a fight with a robot babe at E7L3]"

"I am the king of the world, baby! (reference to the 1997 film "Titanic") [after rescuing a babe and after credits - in video sequence with babes and confetti, black screen appears for a moment and Duke says this phrase]"

"Ooh, I better get the hell out of here! [after the first part of the fight with boss at E4L3]"

"I'm an equal opportunity ass kicker! [after killing a female bot]"

"I'm not gonna fight you, I'm gonna kick your ass! [before fighting boss at E2L3]"

"I can do this all day... [after respawning]"

"I could use some new boots. [when Duke encounters a mutant crocodile]"

"I don't do windows. [when encountering window cleaning platforms at E1L2]"

"I go where I please, and I please where I go. [after rescuing a babe]"

"I hate pigs! [after killing a pig cop]"

"I kill bugs... Dead! [after killing a mutant roach or fly, old Raid insect killer slogan]"

"I like big guns, and I cannot lie. [when Duke chooses rocket launcher, reference to Sir Mix-A-Lot's song "Baby Got Back")"

"I love the smell of bird crap in the morning. (reference to the film Apocalypse Now: "I love the smell of napalm in the morning", spoken after entering tanker deck at E6L1)"

"I see dead people. [when he blows multiple enemies up with X3000 gun, reference to the film The Sixth Sense]"

"I want a damn refund! This cruise sucks! [before fighting boss at E6L3]"

"It's a good day to die! (reference to Worf from Star Trek: The Next Generation) [after going through weapon detector at E8L1 and respawning]"