For some strange reason, you are sitting in space with various coloured aliens moving towards you down the screen. The aim of this part of the game is to kill off all these alien ships without you yourself being hit by one of their swarms of bombs. Once this has been accomplished, your ship is placed at the top of the screen and you slowly start to drift downwards through a meteor storm. Unfortunately, it is impossible to blow up the meteors; rather, it is necessary to avoid them.
Once you have guided your ship to the bottom of the screen, you find yourself on the outside of a small 2D maze. A little man (you, presumably) jumps out of your ship, and he/she/it must be guided to the other side to where a crystal lies and then back out again. Progress is hindered by a sort of alien blob, which wishes to shoot you, though he is unharmable. In fact, this particular alien can make life very difficult, simply by sitting next to the entrance to the maze. As soon as you make it back to your ship the game restarts, but with different shaped and more ferocious alien beings.
Action is reasonably fast and smooth but yet again the game is rather repetitive. The three different basic concepts do make the game more fun than the straight 'Space Invaders' type scenario from which the first stage is taken. The graphics themselves are quite good but nothing particularly exciting by today's standards. One asset it does possess above some of the flashier games is that it is addictive and fun to play and that counts for quite a lot.