Coding without a keystroke: The hands-free creation of a full video game (opens in new tab)

I find it funny that the game is called "Dig Dog" since in 1994 there was a German car "racing" game released called "Dog Dogs", where you had to obey the traffic rules (it was educational). Everyone I know tried to break the "spirit" of the traffic rules in this game without getting punished.

Here a playthrough: https://www.youtube.com/watch?v=YMt8uXMkAmA

And here two playthroughs where the player try to break the spirit of the traffic rules:

https://www.youtube.com/watch?v=ZwWPe6oCB5U

https://www.youtube.com/watch?v=XluZRF2VPy0

Has anyone who is not a native speaker gotten dragon to accurately detect even basic commands like page up, page down etc.? I've been testing such a system for months now and I can't get past the basics.

Also has anyone used the smartnav? I've been thinking about it but wasn't sure how good it is. I just switched to a roller mouse red which is still hand operated.

Interesting. I wonder if things like head tracking could also be utilized for improved efficiency even for those of us without any injuries or disabilities.