#2: Taki (Soul Edge)
We originally contemplated giving Taki two places on this list in honour of her formidable pair of assets. (We are referring of course to her twin ninjatō blades which she uses in a masterly display of…. Nah, not really.)
Like the improbably propotioned Mai Shiranui, Taki is better known for her gargantuan novelty-sized torso lamps than any Ninjitsu prowess she may possess. To make the match fair, her male opponents would have to stuff beach balls down their shirts weighted with sand. When you take this into account, Taki is arguably the toughest and most skilful ninja on our list (well, apart from Mai, natch).
Greatest Achievement: Defeating the evil corsair Cervantes de Leon.