Despite there being fan-created roms of Star Fox 2, the full, completed game does exist according to Dylan Cuthbert.
Cuthbert, who recently worked on Star Fox Command for Nintendo DS and Star Fox 64 for 3DS, was originally part of Argonaut Software - who devised the ill-fated Star Fox 2 for the SNES.
In an interview with NintendoLife, he recalled how the studio "went ahead and completed it, taking it to be fully QA'd through Mario Club." Interestingly, during development of Star Fox Command, the team received a copy of the mastered Star Fox 2 ROM to play through as inspiration for the DS project.
"The fully complete Japanese ROM at least does exist," he teased. Despite legal issues with Argonaut Software, Cuthbert urged, "Never say never, though!" We can only hope.
Would you like to play through the finished Star Fox 2? Have you tried out the game's fan-translation yet?