Yo-Yo Girl Cop is actually named Sukeban Deka: Kôdo nêmu = Asamiya Saki which, literally translated, means Juvenile Delinquent Girl Detective: Code Name = Asamiya Saki.  Sukeban Deka started as a Manga (Japanese comics), was turned into a TV show, and, finally, this movie.  This is the first film we saw at the New York Asian Film Festival.

Asamiya Saki's weapon of choice is a razor-sharp yo-yo, with which she sometimes bonks herself in the head.  She keeps her yo-yo in a thigh holster hidden under her little school girl uniform skirt.

There is a lot of martial arts yo-yo action, and nods to James Bond, Silence of the Lambs, and any other undercover cop movie.  It was a lot of fun.

I tried to find a picture of Asamiya and her arch nemesis in their normal clothes, but all I could find is them in their 'big fight a the end of the movie' clothes.  Notice that she still has her school girl uniform neck scarf on, even in a full-body vinyl fight suit. Kick ass.