Published by Salamander Software in 1984 the Spectrum conversion of Jeff Minter‘s Matrix: Gridrunner 2 is a decent enough game, with non-flickery graphics and responsive controls. I’m not entirely sure who coded it, but it could’ve been Minter himself.
The sequel to Gridrunner, Matrix: Gridrunner 2, is a more refined, varied and engaging incarnation of Gridrunner than was seen previously. It was written by Jeff Minter and first published by Llamasoft in 1983.
Designed by Ed Logg and Dona Bailey, Centipede is a superfast fixed-screen shoot ’em up from the arcades of 1981.