The folk at Unseen64 have dug up the initial prototype for Star Fox, called NesGlider.
The story follows on from the 1986 release of Starglider by British studio Argonaut Games, by which Nintendo had become interested in the team's efforts with 3D models. After signing a deal with the studio, a working prototype of a project known as NesGlider was created to run on NES hardware, in addition to a version for the SNES as well.
Argonaut wanted to take things further, however, and urged Nintendo to allow the team to design hardware that was better suited to 3D effects. Enter the Super FX Chip, which was embedded in the Star Fox cartridge to ensure things came together without SNES players needing to alter their setup.
Nintendo producer Shigeru Miyamoto also got involved, suggesting an idea for a spaceship that would fly to other planets, and all the main characters being animals so as to be less "boring."
Would you have liked to see NesGlider developed with the original design in mind?