Death Code: Ninja

A Marine must do whatever it takes to save his kidnapped sister and stop a terrorist attack masterminded by a radical militia group.

Two brothers compete in the world's deadliest underground fighting tournament, where they must decide whether to play by the rules or to cast their honor aside and team up to bring down the dark syndicate running the tournament.

An aerobics instructor becomes a ruthless assassin after being possessed by a slain ninja's spirit, leading to a showdown with a martial arts expert.

A westerner named Casey, studying Ninjutsu in Japan, is asked by the Sensei to return to New York to protect the legendary Yoroi Bitsu, an armored chest that contains the weapons of the last Koga Ninja.

Nick and Ruben are hoodwinked into a "shootfighter" (no-holds-barred, to the death) martial arts match by the evil Mr. Lee, who has a grudge against world shootfighter champ(and teacher of Nick and Ruben) Shingo.