H.E.R.O. is one of the best C64 games. It lacks is in terms of variety of its level design, balancing and different mission options.
Sadly H.E.R.O. is back kind of makes similar mistakes. It adds a bunch of new levels, which aren't always fun, because they aren't this well designed, it lacks more variety (or like Dig Dug Revival, nice randomization), it lacks more mission options, it lacks the best of all H.E.R.O. versions (f.e. better steering and explosions).
So, it's nice to have a new H.E.R.O., but it lacks more improvements and some awesomeness.