Commonly considered as one of the most influential video games of all time, the goal is to defeat wave after wave of descending aliens with a horizontally moving laser cannon to earn as many...Read allCommonly considered as one of the most influential video games of all time, the goal is to defeat wave after wave of descending aliens with a horizontally moving laser cannon to earn as many points as possible.Commonly considered as one of the most influential video games of all time, the goal is to defeat wave after wave of descending aliens with a horizontally moving laser cannon to earn as many points as possible.