Protect the mothership from the dangerous Walkers, Bouncers and Droppers as well as the harmless Treader. Move left with Z, right with X, fire with RETURN and move upwards with SHIFT - gravity will pull you down again. Eight small mines are scattered round the screen. Seven of them are harmless but one is deadly and can disable your gunship if you shoot it in error.

Protector was written for the Electron by Graham Granger of Leatherhead, Surrey. To run on the BBC, change Mode 2 in line 110 to Mode 5.