if it would be like 5 metres wide, you could play it with all of your friends at once, should be fun!
button/person :-)
or if you have more friends, you can make groups to vote if they should push the button!
when i played c64 we really needed 2 of us to handle the broken joystick, one for lower directions, one for jump+fire.
you young folks should really experience teamwork, so go and buy it.