Nintendo will release pretty much anything on Switch these days. Whether you're beating someone to death with a baseball bat in GTA: The Trilogy or exploding Nazi testicles in slow-motion in Sniper Elite 4, the company has no moral objections to violence, bad language, or other 'adults only' content. It was a very different story back in the '90s, though. In an attempt to maintain a family friendly image, Nintendo used to force developers to censor the hell out of their games—a notable example being the N64 version of classic FPS Duke Nukem 3D, which was very different from the PC original.
Developed by Eurocom, with assistance from original creator 3D Realms, Duke Nukem 64 launched for Nintendo's 64-bit console in November, 1997. This was a game no one ever expected to ever see on a Nintendo console, but after playing it, it was clear how the developers managed it. Duke Nukem 3D is a game filled with copious amounts of swearing, gore, nudity, and other stuff that was considered super edgy in the '90s. This was as much of a selling point as the superb FPS combat, the huge, intricate levels, and impressively detailed and interactive (for the time) environments.
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But this is all missing from the Nintendo 64 version, which is glaringly obvious from the very first mission. On PC this mission was called Red Light District; on the N64 it was renamed to Gun Crazy. Where there used to be a pornography store selling adult magazines, there's now a gun shop. The strip club, formerly the centrepiece of the level (and a favourite of countless filthy-minded '90s teens), is now a fast food restaurant. Even the numerous bottles of booze scattered around the level have been replaced
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