Space Busters

In this classic-style Space Invaders game,you can move your ship left and right at the bottom of the screen. You can hide your ship from the aliens behind 4 buildings, or shoot through them to kill the approaching aliens.The aliens can also shoot through your buildings to kill you,and you only have these building for the first 5 levels - on the next 4 its just you and the aliens.You have to kill all 78 aliens to get to the next level. Also try and kill a few flying saucers at the top of the screen for extra points.