The Commodore 64 version of John Van Ryzin‘s 1984 classic H.E.R.O. plays just as good as the Atari 2600 original, although the graphics are a little messier.
I think what they tried to do was add some ‘texture’ to the backgrounds, but just ended up adding lots of distracting dots instead… It does make the game more difficult to play, because it’s more difficult to judge where things are in the mass of pixel ‘overgrowth’.
Conversion of the Commodore 64 version was handled by The Softworks, and – graphical embellishments aside – they did an excellent job of it.
H.E.R.O. on the C64 was once again published by Activision.
More: H.E.R.O. on Wikipedia