Impulse (Shoot'em Up)

n excellent shoot 'em up which requires a great deal of strategic planning. Fire at a ball then press fire again for the ball to fire. Moving the joystick ensures that the line of fire is deflected at the appropriate angle. Your aim is to shoot the aliens before they pass through the screen. Kill them all and you'll progress to the next level. An easy version has also been put on the disk for those who need the extra lives.