Arrow key movement and space to shoot. Avoid all enemies. The cannons fire lasers and missile and can be destroyed by shots. There are random asteroid storms that destroy you and your enemies. If a ship with a + sign comes shoot it down for an extra life. Tips: -Move around every 5 seconds to avoid getting hit by the laser gun. -During asteroid storms take out turrets and hide at the bottom. The asteroids don't hit there. -Kill the red alien guys before too many of them spawn to avoid being overwhelmed.
