Manufacturer description: 'Alien Invaders is a game for all Ages 5 and up. The rules are easy to learn (less than 60 seconds),however, because of the possible combinations of moves it could take one a lifetime to master.''Alien Invaders is unlike any other board game. The game board is unique in every respect. Not only is it printed lenticular, but also it can be rolled up into a tube and when released from the tube immediately returns to a flat configuration. It is waterproof and virtually weatherproof and can be played in any environment.' - BoardGameGeek