Karate Champed is a Hack of Karate Champ.

it has a modified font, minor added graphics, an altered palete, new text, etc.

I got tired of playing the same game for 30 years and changed it.

Light Vs Dark instead of White Vs Red, 
R01-R07 instead of 1ST-7th rounds is what the R stands for.
The game is a such that there really isn't much that can change.
However I tried to chage everything I could with out destroying 
the theme or element of the game that is Karate Champ..