I only played the Gameboy version, really fine game. But looking at the video most 8-bit versions look really good, save fr the Apple II one.The NES game and he 16-bit versions seem to be different games though, seeing how Robocop starts without a weapon and punches people.
But sadly Robocop can look even worse than on the Apple II. We will all have to take that pain this year...
I love the Arcade original, and I have to say I have a fondness for the amstrad version. Although the NES version is a completely different game I played it to death growing up and I love the music on that version.
TBF, if I had nver played the NES version growing up I would think it was a letdown. But Nostalgia and Childhood memories are a powerful thing, and because of that I love it.