I'm in Shock
From the bottom of the screen, you shoot upwards towards a wave of aliens who float around the top section of the screen, gradually moving towards the bottom, which would mean losing a life. Although some can be shot directly, the main trick is to use an array of diagonally-angled blocks to deflect shots upward to hit them, often off more than one of them. Control is via the keyboard, but (as with many early Spectrum games) a wide range of keys can be used.
Martin Smith (63241)