Alternative game controller in vintage -style " Magic eye race " arcade

 When I was a kid I liked to watch how "Magic eye" blinked in our old lamp radio.

This week I have   an new arcade game " Magic eye race". I used only green and yellow colours as in old tube lamps and radar  displays. I hope radio amateurs 50+ will like it 8-).

Unfortunately , I have only two feet and one game controller, so I  controlled only left " Magic eye".