Arrow keys/WASD for movement, press E/M to fire. The menus don't change, and that is because this was an abandoned project.
This is an Abandoned Work in Progress, one of the projects I was working on before I left. This was a planned sequel to Canvas Tanks, with more "maps", gameplay variations, and menu improvements. I never really knew why I stopped developing this, as it was all things that I was already used to.