No.24: Exolon - Hewson, 1987
It's probably hard to imagine the impact of Exolon today. Certainly in terms of gameplay, it's hardly original. But in creating a colour clash free display together with the shooting action and finely tuned difficulty, ace coder Raffaele Cecco and publisher Hewson had a hit on their hands, and a game compared favourably with arcade games of the time.
Thanks to www.spectrumcomputing.co.uk for images