CensorshipIn the Japanese version of the game, the gorilla originally had a cigar. Not surprisingly, Nintendo edited it out prior to the North American release.
InspirationMuch of the story, the characters and artwork, was based on Winsor McCay's surreal graphic masterpiece "Little Nemo in Slumberland", a weekly comic strip that ran in various newspapers from 1905 to 1913.
Besides being in comic and videogame form, Little Nemo has also been showcased in animated features. First in Little Nemo from 1911, an animated short by Winsor McCay and J. Stuart Blackton that took 4 years to make. Much later in 1992 came Little Nemo: Adventures in Slumberland, a large scale production by Masami Hata, Masanori Hata, Chris Columbus, and Ray Bradbury. Unfortunately, it received very little attention both critically and commercially.
Information also contributed by CaptainCanuck