You are drone unit Z19 and have to find six blueprints (the game says eight) which are shortened as BP and then find the teleporter to home. You have to make clever use of locks, which you can unlock with keys, and teleporters. There are also oil cans you can collect for bonus points. Watch out for the space flies and spikes that will destroy the drone on impact. The drone has four lives. Published by Database Publications in Micro User Magazine vol.6 issue 9 in November 1988.