Use "w" and "s" to move player 1 up and down, and "d" to fire. Use "up arrow", and "down arrow" to move player 2 up and down, and "left arrow" to fire. If you hit the bullets, you get +10 ammo. If you hit the "new gun" pack (the green "G"), your gun gets upgraded. If you run out of ammo or health, you lose. Fireballs can go through the middle barrier. Missile launchers are slower but deal more damage. If you shoot the missile launcher in the middle with a fireball, it will shoot three missiles at your opponent.
