Published in the book The Giant Book Of Games For Your BBC Micro from Fontana Publishing.
The book contains the following description:
Full instructions for this dynamic game, based on an idea by Paul Toland, are included in the program. Aliens are stacked above you, ready to fall when their stack is full. You can shoot an alien at any time, but the lower they are when hit, the more points they are worth.
The difficulty level determines the speed with which the aliens appear above you. The program includes a high-score feature.
|Primary genre||Space Shooter (Gallery)|
|Compatibility||A:✘ B:✔ Master: Untested|
|Compilation||Giant Book Of Games For Your BBC Micro (BOOK)|