Better in fullscreen. Player 1: use the "w" button to move up and the "s" button to move down. Use the "d" button to shoot. Player 2: use the up arrow to move up and the down arrow to move down. Use the left arrow to shoot. In order to win the game you need to take down your opponents 10 lives. But be careful because you only have 10 lives as well.
I thought this would make it funny.
