Both U.S and Japanese system looks same, and the game play is also same, but the latter, you can see blood , Mai's bounce (in kof 2000) <IMG SRC="smilies/biggrin.gif" border="0"> and some extra scenes which you can't see in US system. I personally prefer jap one, because of above merits plus I feel jap language is more comfortable.
kj
[ June 10, 2001: Message edited by: KJ Mylord ]