Dermo, the difference is 2 and a half tiles at 800x600. At higher resolutions, it's more. Get a life. ;P

So, I've experimented with this resolution changer a bit. It's quite cool to see JJ2 realized on my HDTV. now if only the game had 7.1 surround

So far I would not say that the 'advantage' higher resolutions gives you is significant. The game still requires skill to be good at. True, you can see people coming from further away; however, for all you know they have the exact same program with the same resolution.

Also, I thought I'd add (for anyone who didn't figure it out already) that my resolution changer was abandoned long ago. I got 800x600 working pretty well, but anything above that caused untold misery. The one sort-of-advantage to my tool was that it did allow custom resolutions to show up (weirdly) in the in-game menu. No, I don't still have it; it was lost long ago when my Windows XP machine went kaput.