This is a basic version of the old Missile Command type game. Things fall out of the sky, and you have to shoot them before they land on your cities blowing them up in the process. This game could have been really good, but it's ruined by the fact that it's impossible to shoot accurately. The gun has a 'scatter' effect, which basically means it fires anywhere except where it's being aimed at! Graphically okay, but generally disappointing, really.