Super funny twist on the theme! We had a similar idea in our brainstorming but didn't manage to make it work. Glad you made it! It is painful to play but I think that is exactly the point!
I think I agree with one of the other comments on the page, having the same set of commands and having the possibility to switch hand will improve the usability a lot. I also think I had some problems with keyboard layout because some letters on my keyboard didn't match the letters in the settings (minor issue because I tried to re-assign it and got the same letter so I understood that was just a layout issue)