Is all a matter of prefference. I for one think that even though C4 didn't bring anything new to the table, it still made what was already there better, you see I'm one of those guys that worships Neo Contra, but I know a lot of people don't get it.
Yeah there might be 100 games that could be better, Ninja 5.0 for example, but noetheless is way above hordes of thousands of crap games, hell! better yet is above many arcade titles that have been released recently, shit! who are we kidding the game is better than many aracde titles that came long ago.
Dude! If I say this game is one the greatest games of all time and it bothers you, you need to understand that my list is long. Fuck it man! Is the sheer excitement of it all! This particular contra was well designed, "the gap" which bothers me none given that I used to play a lot of Game & Watch when I was a kid so I think the whole game was designed fluidly.
You didn't even mentioned Hard Corps tsk...tsk...and still left a heavy burden unanswered NES or PCB? I know is hard, but both of them stand equally as far as I'm concerned. I dunno man, I think this is the right step into the evolution of Contra, "all of its ideas and designs were done better in previous Contra games" I wouldn't say better, I think the fact that there's no originality keeps the game in track, otherwise itwouldn't be Contra.
Shit! If you ask me I'll tell you Ninja Spirit is the greatest game of all time, but don't listen to me, just don't slow me down partner!