From January 2021 many browsers will no longer support Flash technology and some games such as Hong Kong Ninja may not work.
Solutions are being studied to allow Flash games being playable again on browser. If your game doesn't work you can try one of the similar games on this page.
Hong Kong NinjaAuthor : Miniclip - 160 559 plays
The streets of Hong Kong have fallen into the hands of godless and lawless gangs of bandits. Thus far, all attempts to restore order have failed and only 2 brave ninjas, Long and Ring, have the necessary talent and courage for this mission. Play as one of them and teach those street criminals the law of the ninjas in this beat 'em up with a Double Dragon feel to it.