Karnov (US, rev 5) represents a revised version of the original Karnov arcade game, likely featuring updates or modifications from the Japanese release. The revision number suggests bug fixes or balance adjustments. The specific changes between this revision and earlier versions remain undocumented publicly. Data East, the original developers, are presumed to be responsible for this version as well.  Gameplay elements would closely mirror the core gameplay of the original, but with possible refinements in mechanics or difficulty.

Karnov (US, rev 5)

Karate Dou (Japan)