Review published 21st June 2026

Watch the official trailer.
Yo Yo Girl Cop Opening and Undercover Assignment
In a dramatic opening, a young woman runs about the busy city streets of Japan with a ticking bomb strapped to her chest, killing herself and others when the bomb explodes. After the tragic opening, we are introduced to K Asamiya (Aya Matsuura), a Japanese young girl who is currently in prison for crimes where she single-handedly took down eleven policemen. Straitjacketed in prison to keep other safe, K receives an unexpected visit from a Japanese Inspector named Kazutoshi Kira (Riki Takeuchi). Kira seeks K’s assistance, wanting her to help with their investigation by going undercover as a student and infiltrating the school Seisen Academy.
Yo Yo Girl Cop Mission, The Enola Gay Website Investigation and Reluctant Recruitment
K must find the runners of an underground website known as The Enola Gay who is responsible for the recent bombings. Currently the site has a ticking clock, but it’s not known what the clock means, nor do they know who owns, runs and maintains the site. At first, K laughs at the task and has zero interest. Kira even tries to bait K by providing an update on her mother, who is being detained by American authorities, threatening should K choose not to help, she’ll never see her mother again. While K has no interest in seeing her own mother again, she soon changes her mind after an attempted escape leads her to help a young girl.
Yo Yo Girl Cop Undercover at Seisen Academy
Blending in as an everyday student, K goes deep undercover at Seisen Academy to uncover the source of the mysterious Enola Gay website as well as the connection between the school, the website and the schoolgirl from the film’s opening who died with a bomb strapped to her chest. Armed with her wits, her combat skills, her foul-mouthed attitude, a new name (Saki), and a deadly metal Yo-Yo, K sets out to uncover the truth before everything spirals into complete chaos. But with danger around every corner in the secret filled school, saving the world may prove far more challenging than she expected.

Yo Yo Girl Cop Director and Film Overview
Yo-Yo Girl Cop is a Japanese film packed with action and drama, with a central storyline that also brings a strong touch of thriller elements. The film was directed by Kenta Fukasaku, whose other directing credits include Battle Royale II: Requiem (2003), X-Cross (2007), Black Rat (2007), and many more. Fun fact: Yo-Yo Girl Cop was released by a studio with a reputation for supporting films that are imaginative and different. Considering this film follows a young girl armed with a yo-yo, I cannot deny that it is most certainly different.
Yo Yo Girl Cop Concept, Performances and Action Style
Without a doubt, Yo-Yo Girl Cop introduces a great storyline and concept. The idea of a young schoolgirl equipped with a yo-yo as a weapon feels exciting, and, even to this day, there is still nothing quite like it. Aya Matsuura brings a likable presence to the screen as the lead, projecting a strong sense of confidence in the role. Supporting actor Riki Takeuchi also delivers a memorable presence on-screen and shares wonderful chemistry with the film’s lead, so much so that I wished he had been given more screen time. The action sequences, mostly saved for the finale, are enjoyable, while the film’s use of quick, snappy editing, particularly during the opening and character introductions, helps give the movie an energetic style.


Yo Yo Girl Cop Critique, Pacing and Final Act Review
But sadly, much like an actual yo-yo, the film has many ups and downs, leaving me with mixed feelings as the credits roll. The plot is quite vague, not to mention the questionable investigation methods and process used throughout. Characters who are praised for their high skill sets usually showcase the complete opposite. The character of K, later named Saki, is often portrayed with a constant temper and frequently uses foul language, both of which feel unnecessarily over the top. While the film does feature some cool, brainless action moments, it takes far too long to get there, and, honestly, the final showdown felt quite lacklustre. Ultimately, while Yo-Yo Girl Cop may offer some fun moments, they are brief and forgettable.
Yo Yo Girl Cop Overall Review and Cult Appeal
Overall, Yo-Yo Girl Cop feels like a made-for-television action film infused with strong 90s energy, particularly through its snappy editing, rapid-fire cuts, and frequent use of slow-motion visuals. Fans of the original Sukeban Deka, or viewers simply curious about a wonderfully bizarre concept involving a teenage undercover agent who fights with a deadly yo-yo, will likely appreciate just how different, unique, and downright playful the film can be. While the movie begins strongly with engaging characters and a plot setup, the story gradually becomes fairly straightforward and somewhat forgettable. Although the action picks up again at the climax, the finale itself still feels relatively safe and simplistic despite the increased energy. Nevertheless, the film carries an undeniable charm that will likely appeal to fans of cult-made-for-television style entertainment or anyone seeking something eccentric from the imaginative and genre-shaping legacy of Toei Company.
Yo-Yo Girl Cop (2006) is Now Available on Blu-ray thanks to Umbrella!

About the Reviewer
Peter Walkden
Film writer and curator with a deep passion for cinema, genre filmmaking, and physical media. Exploring new releases, cult favourites, and overlooked films, with a strong focus on atmosphere, storytelling, and the theatrical experience.
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