Tribble Trouble (UK) (1985) - Amstrad CPC - Puzzle, Sci-Fi

The Tribbles are continually running around the screen, and you must capture them before they reach a shower unit that will spray deadly acid over them and kill them as a result. There is a cage at the top left of the screen, which you can use to capture the Tribbles one at a time by manoeuvring a set of crosshairs and dragging the cage into the Tribble's path.