
1) Atari ST game 2) ZX Spectrum game
Found on
https://www.crosswordclues.com/clue/exolon

Exolon is a run and gun game programmed by Raffaele Cecco and published by Hewson in 1987 for the Sinclair ZX Spectrum, Commodore 64 and Amstrad CPC 8-bit computers. It was later converted to Enterprise 128 and to the 16-bit Amiga and Atari ST platforms. The player takes control of a futuristic soldier across several flick-screen levels of gamepla...
Found on
http://en.wikipedia.org/wiki/Exolon
No exact match found.