Alien Invaders - open to bidding

I have codes ready. All I want you to do is create a laser gun that can move left/right by arrow keys and shoot by pressing a space " Laser cannon should be able to move left and right using the arrow keys on the keyboard. Maximum speed (motion period) should be controlled by a timer. When the space bar is pressed, the Cannon should "fire" a laser pulse (extended ASCII code 0179) that moves up the screen one line every 17 milliseconds. The cannon may not fire again until the pulse hits something or goes off the screen. If the laser pulse encounters an Alien, it should "explode" and disappear on the following frame. Each time an Alien is destroyed, the interval between alien moves should shorten. 44 aliens * 17msec = 0.748 seconds, "