Yo, cool video! The backstory is a bit mixed up though. This is based on a modern game you can download free here: http://www.indivisiblegame.com/download/
But I made basically 100% of the NES version from scratch recently all by myself, it's not a hack of an unreleased game from back in the day. It's definitely worth trying the modern game its based on just to compare the two.
And to answer your question from the video, it does indeed work on an actual NES! Thanks for playing and making a video!