Hi Daedalus, thank you for this note!
We designed Triforce alongside Metagaming, a book about the games we play in, on, around, and through videogames published by the University of Minnesota Press in print and open access at at https://manifold.umn.edu/projects/metagaming. For archival and legal purposes a copy of the game will also be uploaded there.
(That said, we have also been working on a version/mode of Triforce rendered entirely with children's drawings instead of NES graphics!)