going back to space invaders on the orignal arcade game on the very first sheet if you shoot one of the top men last when you are going to clear the sheet,he will appear on the screen taking up the hole screen. ( this only works on the very first sheet only on the original arcade game )
you don`t get anything extra for it. and don`t forget if i remember every 13 shot you get 300 points from the space ship.
