From C64CG website, "Stuck in a world of CBM PETSCII graphics, it is your job to defend PETSCII from the deadly empire of the CBM's CPU. Stand on guard and fight your way through eight levels, where the position of the player rises, making defence more harder. Falling blocks can't do any harm to your ship, but if they hit the ground PETSCII gets damaged. Once PETSCII energy (N.R.G) is below 00%, the game is over. Complete the came and you will be rewarded something pretty."