Duke Nukem Forever's extras include a visualization of the game's beyond-infamous development history, as well as trailers that go back as far as 1998. These trailers do a fine job of showing just how far games have come visually; in fact, they do a better job of that than Duke Nukem Forever does. It would have been more impressive had it been released during the last console generation, but it still would have been ugly to look at. Most of the aliens look okay, but with the exception of Duke himself, human character models look lifeless and creepy. Multiply that by ten when you factor in the franchise's penchant for gratuitous smut, and you've got one hell of a problem. It's not all bad (though it mostly is); sometimes enemies blow up real nice. The rest is amazingly unpolished; textures pop in after several seconds, and even then, they aren't appealing. Duke Nukem Forever also finds itself burdened with some of the longest load times of this console generation. For a game that looks so sub-par, that is unacceptable.
Duke Nukem Forever's sound design is bound to be as polarizing as the franchise's earlier installments, primarily because it leans so heavily on the performance of Jon St. John, who has provided the Duke with a voice since Duke Nukem 3D. Personally, I don't think his performance in this game comes anywhere near his debut, but it manages to elicit a chuckle from time to time. There are a lot of pop culture references at work, and some of them will surprise the hell out of you -- some in a good way, others not so much. The rest of the sound design is lackluster, from the bland metal shredding to the woefully dated sound effects. For example, the shotgun's report leads me to believe that the developers ripped a clip from the PlayStation era.