In the early 1980's an Arcade game released by Williams Electronics was to become one of the most important titles of the golden age of video arcade games selling over 55,000 units. That game was Defender; a side scrolling shooter featuring 2D graphics as you defend astronauts against wave after wave of alien enemies. In fact it was so popular that we have seen many Defender style of games and even clones released throughout the years and it's why we are also mentioning Mr SQL's ' StarBlitz ', that is in development and available for download.