I think I saw this on USA Up all night, years ago when Gilbert was still hosting.  What a piece of shit film!  The battle in the rocks has got to be the lamest choreographed fight ever to be captured on celluloid.... er.... video.

     Aren't those guys in the red shirts from Star Trek?  Huh huh huh...  Then why are they trying to act like they're ninjas or somethin?  Hehhehheh.....  They suck.  Better look out for the Klingon ninjas near Uranus buttmunch.  That Michael Dudikoff looks sorta like that David Hasslehoff guy.  They both suck.  Henhhehhenhhuhhuhhuh pull my finger American Ninja........  **FART**  You suck.
 

By tha way, Mike Stone (the bad ninja) is in the black belt hall of fame but I don't remember seeing your names in there so who are you to judge what is bad fight choreograpy. I guarantee the million dollar home Michael Dudikoff just bought, along with the Harley Davidson he paid cash for, and the four cars in his driveway says he doesen't give a damn what you genusies say!!!!!

The Movie sucks, there is a lot of errors. Ninjas are suppose to be the best but in this movie ninjas are shit.
For eg: In the scene where the ninjas are fighting where the boulders are one knock to the ninjas and there down. but
in the scene with the ninja getting draged behind the pick-up he never seems to give up. The Drug Leader, the one dressed in a white suite looked like a dummy, his hair and mouth look fake. THIS MOVIE IS 100% CRAP.

I have yet to see this one (seen 1 and 4, and parts of 3), but I'd just like to say - some people don't watch bad movies with the right attitude.  This series is friggin hilarious, I personally think most of the stuff done badly is done INTENTIONALLY badly.  

Oh yeah, and Ninjas were NOT the best.  That's just a myth movies seem to like saying, and then they often throw in the Bushido code of honor.  And of course, Bushido was the code for the SAMURAI.  Ninja were just masters of stealth and assassination technique, since they had no code of honor bad men OR good men could use them.  Interestingly, there were also a number of Female ninja, despite what the American Ninja movies suggest.  Ninja swords were vastly inferior to Samurai swords - you couldn't really inflict the same kind of damage with them, you generally had to STAB instead of slash, and the blade was so dull you could use it as a sort of hammer (since many ninja were farmers in their normal life).

Throwing stars were not usually lethal unless poisoned, they generally were to throw down following enemies, since Ninjas would assassinate and run.  Also, sometimes they would deliberately nick guards with a few throwing stars - to continue the image that they could become invisible at will.

Your wrong. Ninjas knew deadly styles of hand to hand combat known as Tai Jutsu. They learned this in first 3 sets of 9 sets style. The last would go into internal martial arts.knowing what you're opponent does or will do, by predicting or other things I forgot I read. They were raised since childhood as Ninjas and practised or were brought up that way. The Sumury greatly feared them and they were known as the ultimate warriors. They were like assasins with absolutly no fear or remourse for their life or anyone elses. You should read "Ninja: And their secret fighting style" by Stephen Hayes (sp?).

after only having seen american ninja 4 i didnt quite know what to expect, and yes although its awfully acted and in some places the fight choreography is bad on the whole there's enough bone crunching testosterone driven ninja and chop socky action for martial arts fans: just dont expect A Beautiful Mind or Saving Private Ryan and you can have a great time; dont be put off by the first fight on the rocks and beach that is pretty lame but it gets better: and thankfully most of the irritating characters get killed off(like that guy Taylor man he acts bad!)....if you want bad, see American Ninja 3, that is 90 minutes long and feels about 4 times as long

     The movie would of been alot better if it was more choreographed and action- packed.  Every fight in the movie was boring with no creative fighting techniques or nothing like Jet Li moves.  I mean ninjas are supposed to be the most deadly and dicsiplined martial artist in the world and this movie makes them look like pussys.  And michael dudikoff is cool but sucks at acting.