The OP presentation is absolutely delightful. The challenge of (reverse) engineering to a visual spec, the presentation of programming with severely constrained

The OP presentation is absolutely delightful. The challenge of (reverse) engineering to a visual spec, the presentation of programming with severely constrained resources, old school hardware, retro, egalitarian programming language--so many fun parts about this project. And all of it comes out of, as you say, "a few seconds of film".