Whats this classic martial arts movie?

ok, im saying this to the best of my recollection (i saw as a kid). It is an 80s possibly late 70s movie. There is this guy(s) fighting different groups of ninjas. There are different levels of ninjas as they wear different colors. I even remember one ninja hiding in/behind a tree and this guy cuts it in half killing that ninja in half HAHA and I want to say that it has a long movie title as in many words? PLEASE HELP ME FIGURE IT OUT

 

enter the ninja..
ninja 3 the domination..

Only a few movies changed the tradional ninja garb, the outfits. were the outfite,, white or red?
Sho Kosugi is a well known 80's movie ninja.

 

thanx for that quick response. i just checked out both of those. i know for sure its not the Ninja 3 Domination. But it might be Enter the Ninja.

And I dont remember the colors exactly. I just know that when that guy(s) killed that level of ninjas in (color), he went to the next group in (color). And every group of ninjas in (color) was a different battle scene. I remember one group was around trees, and another group might have been under water or something?

 

well its not "the octagon", that has chuck noris in it.

"American Ninja" was kinda lame, I think they had many colors in that one. Was it funny kind of ninja movie? http://www.rarekungfumovies.com/nmdb/Ninja_Movie_List.htm any of these??
Thats about all I know..

 

ORISON319...YOU ARE THE MAN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I believe I might have found it in that link you provided. Chinese Super Ninja looks like it might be it! Yea, I remember it being a little cheesy. From the start, I wanted to say "Super" might be in the title (dont even know how the heck i remembered that) but I didnt want to throw any off while trying to help me. Chinese Super Ninja looks like it might it!!!!!!! Thanks again Orison319!!!!