A decent Commodore 64 conversion of Cybernoid, by Nick Jones.

Graphically, the C64 version is well constructed. The same challenging gameplay as the Spectrum original survives. This being the Commodore 64, though, there’s an extended piece of music that plays throughout (and it’s pretty good although it can be switched off in favour of sound effects).

Cybernoid on The King of Grabs:
ZX Spectrum version; Commodore 64 version; NES version; Amstrad CPC version

More: Cybernoid on Wikipedia