Considering Billy recently posted that Rayman 2 review, this is perfect timing! The creator of Rayman, Michel Ancel, recently unearthed an EPROM cartridge of a long lost, canceled Rayman game for the Super Nintendo Entertainment System. He posted images of the unreleased game to his Instagram account. According to Ancel, "We thought it was lost, but somewhere in the cold electronic circuit, something was alive."
The original Rayman launched in 1995 for the Atari Jaguar, Sony PlayStation, and Sega Saturn. Before that, however, the game was planned for an SNES release, but that particular version was canceled due to the rise in CD-ROM technology in the newer consoles of the time. As a result of that, this unreleased SNES version of Rayman is fairly different from the final product on the Jaguar, PS1, and Saturn. For example, the SNES version was going to have a co-op mode.
Now if only someone were to dump that ROM...