I'm working on a project to get Octo programs on a black and white CRT. It's going well so far.

If you use the Octo HTML export with 6x scaling and upload to itch.io as playable in browser with a window size of 768x384 with the full screen button enable then it's easy for me to play your game on my CRT and do a little video.

Mine should work, and hopefully when it switches to greyscale the colors are still readable!