Reminds me of some of the results in the "Velocipedia", in which people were asked to sketch a bike from memory: https://www.gianlucagimini.it/portfolio-item/velocipedia/
I’m assuming “Megawars” is by the author of the classic book “Learn FORTH on the Atari” https://archive.org/details/ataribooks-forth-on-the-atari-learning-by-using