I havent bought any of the mangas...but yea there is Megaman NT. Warrior mangas here in the U.S. I haven't picked them up because it's labeled for "Viz Kids" so i made me believe that they made some edits or sumtin...and i hate it when the U.S edits stuff out. Especially in manga form...since manga's aren't really met to be "censored" IMO anyway.
So, it just answer your question...yea...yea there is