While making use of a cipher is interesting, I would have at least put that inside of the game in one form or another instead of referencing it. But it was a good brain exercise to do.
Thanks so much for giving it a try! There is actually a way to solve the cipher from inside of the game, but it's rather convoluted and easy to miss.
I hope you had a good time, and I appreciate you putting in the effort to make a video. It really helps!