this movie be make to be a film about a war between the japanese mafia and a group of ninja and the two yard servant who get in the middle to save their bos and the high man in the mafia . the fight scene be film slowly and for example when an actor through a punch he make his fist move slowly a if go to pet a strange dog . the editor later add sound effect and speed up the film to give the illusion of extremely fast fighting . the novice camera trick in this movie give it a hilarious touch . wire use in fight scene make me laugh for hour . when you finally meet the ninja warrior in the end and you will stare in awe a they use ninja invisibility in the fight . it one of my favorite .