"This demo looks like it's replicated the core mechanics of pac-man with worse graphics, 3-4 orders of magnitude higher resource consumption, and undoubtably many odd bugs hidden away from the pretty demo. It even needed the game to exist in the first place!"

True, though my first thought was that this would be interesting from a reverse engineering point of view. Then again Pacman is pretty simple concept. Something worth reverse engineering is probably a lot more complex.