Yakuza Deka Collection

An undercover cop befriends a yakuza underling who through his contacts helps him infiltrate two rival Yakuza gangs. He pits the two rival gangs against each other in hopes that they will cross each other out.

An undercover cop insinuates himself into a yakuza family. Managing to avert an assassination attack on the boss he is assigned to kill a rival boss.

Exciting fights between the police and a crime syndicate over the secret of poison gas.

Exciting fight of a secret police detective over secret of a diamond.