For the last 200 years, the main energy is Di-Planium, which is obtained on the fourth planet of the Krellis System, defended by ten levels of defense called the Diagon. Your task is to defend the Grid from an invading alien force by destroying all their ships in each level. The game is a top-down single screen shooter in which you move around the screen destroying the aliens, and although you can move in several directions, you can only shoot forward. On the outside of each screen there are also aliens shooting inwards and if you are hit by their weapons or a ship, you lose one of your five lives. Destroy all the aliens and you will pass to the next level. Before starting a game you can select your entry level (0-9).
