Consoles and arcade games often have large guns that you have to point at the screen, I don''t know of any pc game that has one.

quote: At the moment there isn''t really a widely available controller of this type to test these theories on

I forgot to mention the XBox controller, which has six pressure-sensitive analog buttons. As they are intuitively and easy to handle for people used to "digital" buttons, i consider my theories proven.