The final ROM was never leaked. They are using that. https://arstechnica.com/gaming/2017/06/plug-and-play-snes-classic-coming-sept-29-for-80-with-two-controlle

The final ROM was never leaked. They are using that. https://arstechnica.com/gaming/2017/06/plug-and-play-snes-classic-coming-sept-29-for-80-with-two-controllers/ https://arstechnica.com/gaming/2017/06/plug-and-play-snes-cl... https://web.archive.org/web/20150707132659/http://www.nintendolife.com/news/2015/05/feature_the_full_story_behind_star_fox_2_nintendos_most_famous_cancellation https://web.archive.org/web/20150707132659/http://www.ninten... " "During development we received a copy of the mastered Star Fox 2 ROM to play, and it was quite a blast." This ROM would have been the final game, complete with QA tweaks and ready for a release that never happened. Cuthbert is keen to point out that this version is far superior to the numerous leaked prototype ROMs which are currently doing the rounds on the web - the leaking of which has been erroneously attributed to himself. "There are a few ROMs on the net in various conditions," he states. "But the ones I checked out are all old and they don't have the randomizing Rogue-like stuff working or all the encounters in place, so you don't really get the feel of the game we were making." "