- Silverback: And once I've disposed of you, we will be done with this pitiful dirt you call a home.
- Duke Nukem: Well, enough talk then. Come get some! Oh, Silverback, one more thing. I'm gonna enjoy pissin' on your dead body!
- Duke Nukem: That'll teach those alien maggots not to mess with my planet. Now, it's time for some serious R&R, "Duke Style". Hail to the king, baby!
- Duke Nukem: [sometimes says it when you let Duke die, with Arnold Schwarzenegger's accent] I'll be back!
- [says it sometimes when you make Duke kill an enemy]
- Duke Nukem: Mess with the best, die like the rest.
- [says it when Duke collects a Jetpack for the first time]
- Duke Nukem: Oooh, a Jetpack! I'm a bird! I'm a plane! I'm Duke Nukem!