City Hunter: Shinjuku Private Eyes (2019) watch online HD

The Cat's Eye sisters, who were created by "City Hunter" writer Tsukasa Hôjô and who got their own series in Cat's Eye (1983), make a special appearance in the film.

Usually Kaori hits Ryo with a hammer reading "100t" (100 tons) on its side, but the first time she does this the hammer reads "2019t", for the film's release year of 2019.

On the very last scene, the left side of the blackboard has is the illustration of Lupin the 3rd, another famous anime/manga character.

Keiko Toda, who voiced Hitomi Kisugi in Cat's Eye (1983), takes over as the voice of Hitomi's sister Rui, as Rui's original voice actor Toshiko Fujita had passed away in 2018.

When Misono drives Kaori back to her apartment, his driver stops his car on the street without hazard lights on. Additionary, he doesn't light the turn signal when he goes back to street nor turning left on crossing. All of those violates Japanese Road Traffic Law and might be punished.

Ryo's quote "This town needs a man like me" originated from City Hunter: One Cool Sweeper! XYZ Is a Dangerous Cocktail (1987).

Many scenes from this film is based on real areas of Shinjuku, Japan:

• Ai gets scared with stun guns at the alley beside Bic Camera
• Ai's commercials are shown on Shinjuku Station South
• Ai and Ryo get attacked by flying drones at Basta Shinjuku
• Ryo and Umibozu have a battle with drones at Shinjuku Gyoen
• Ai gives the picture to Kaori at NEWoman Shinjuku
• Saeko sets a new message board on Shinjuku Station West.

When Ryo beats up Misono's private army in Golden-Gai, several people come to help clean up the mess they made. The small old lady in the center of the group is "Otora-baasan (Grandma Otora)", whose restaurant was helped in the City Hunter (1987) two-parter "Shinjuku Honor All the Way: The Kimono Beauty Wants to Be My Student."

Ryo gets suspicious about Misono's assistant because he has an unnatural gunner's callus, but he never hold a gun for single time in the whole film.

Ryo uses full metal jacket bullet to fight with drones by ricochets, but he usually load .357 mugnam bullets for his Python.