According to page 111 of the official Nintendo Power Player's Guide, Conker comments about Banjo & Kazooie being on the cover of Nintendo Power, stating that he will never be in the magazine's cover. This statement turned out to be true; as of Nintendo Power's final issue published in 2012, Conker never did appear on the cover of the magazine.

There were plans to include a vampire character in Killer Instinct 2, however the idea was eventually scrapped. The vampire's stage theme, "Bloodlust", however, was salvaged and made into the theme of Count Batula in Conker's Bad Fur Day.

A vampire character wouldn't be added to the Killer Instinct series until 2016, with the release of Killer Instinct's season 3 character Mira.

Marketing materials produced by Nintendo for Conker's Bad Fur Day, as well as the back of the game's box, went out of their way to refer to the game's alcoholic protagonist as having just turned 21 years old. However, according to a pitch document for the unmade sequel Conker's Other Bad Day, director Chris Seavor intended for Conker to have been underaged during the original game's plot, and the sequel would have taken place after he had turned 17-18 years old.

According to software engineer Chris Marlow in regards to the parodies featured within Conker's Bad Fur Day, the development team never asked permission when spoofing famous movies. Nintendo's legal team reassured them that as long as their caricatures fell under parody law, they didn't need a license for it. When it came around to remaking the game for Conker: Live & Reloaded, Microsoft's legal team told them that the original content brought over to the remake was protected under prior art patent law, but they couldn't add new content expanding on those parodies as it would mean they modified the original content and would potentially open up Microsoft to litigation.