Published in the book The Giant Book Of Games For Your BBC Micro from Fontana Publishing.
The book contains the following description:
Guide your ship around the screen, running over the numbers
which appear at random for a short time. If you're not quick,
the number will disappear. You have a limited time, and you
are constantly trying to beat your previous score.
You control your ship with the following keys:
X to move right
Z to move left
/ to move down
: to move down
|Primary genre||Catch 'em|
|Compatibility||A:✘ B:✔ Master: Untested|
|Compilation||Giant Book Of Games For Your BBC Micro (BOOK)|