You have a role to play in this game. You will get to fly a space fighter that can shoot a powerful beam that will help you to defeat your enemies. You will get to move through the galaxy to protect the Earth from the Alien invasion. The gameplay of the game will allow you to collect items and weapons as you go along the way. You will have to shoot down the enemies that come after you. If you do not do it, they will defeat you and you will not have a chance to win. You will not be able to get through the galaxy without the help of the items and weapons that you will collect as you go.