Inspector Kenmochi the Murderer File 4 - S1-E22
Continuity mistake: When Kindaichi runs the demonstration with his phone, the chain of the bathtub changes position between shots. (00:08:40)
Evil Spirit of the Diving Pool - S1-E18
Other mistake: In this episode, we learn that Kindaichi can't swim. However, the series is a continuation of the first one from 1997: in a few instances (the Ghost Passenger Ship Murder Case, The Kidnapping of Reika Hayami Murder Case, with Reika appearing as a key character here) Kindaichi could swim just fine and in fact would bravely dive in the ocean to save someone and swim downstream in a mountain river when gravely injured, respectively.
Evil Spirit of the Diving Pool - S1-E18
Continuity mistake: When Miyuki says that Honosuke the owl is cute, all we see in her glass is an ice cube. Moments later, her glass is filled with orange juice, the ice cubes being well below the juice level. (00:02:15)
Inspector Kenmochi the Murderer File 3 - S1-E21
Plot hole: During the blackout, the people who will turn out in the next episode to be the killer and the victim say things (in monologue) and act in ways that don't make sense in relation to the plot and are merely meant to cheat the audience.
Inspector Kenmochi the Murderer File 3 - S1-E21
Continuity mistake: Kindaichi receives the keys of the building from superintendent Akechi. Notice the somewhat lengthy pieces of wire linking the keys to the large ring. When Kindaichi cracks the case and grabs the keys from his room telling Miyuki to go, the links are half the size they were. (00:19:55 - 00:20:45)
Inspector Kenmochi the Murderer File 3 - S1-E21
Audio problem: Kindaichi is listening to the recording of the phone call a couple times over; however he does not listen to it in a loop, but rather the file shows up as lasting 52 seconds, with the call being just a handful of seconds. On top of that, when he listens to it again in front of the building, the timestamps don't match.
Inspector Kenmochi the Murderer File 3 - S1-E21
Continuity mistake: When Kindaichi is listening to Busujima's call, the bead of perspiration (not a comedic one) on his face changes position between shots; in close-up it is located much higher above the cheekbone. (00:03:05)
The Campground 'Bizarre' Case - S1-E17
Continuity mistake: When Kindaichi's friend suggests washing their clothes in the river, Kindaichi's fishline spirals around the rod in a different manner between shots. (00:09:00)
The Campground 'Bizarre' Case - S1-E17
Audio problem: Having reached the campground sign, Juri Takano shouts at the others that they are almost there. Her mouth animation comes about a second before the sound starts. (00:06:50)
Inspector Kenmochi the Murderer File 2 - S1-E20
Plot hole: One of the plot points of the episode lies in the fact that Kenmochi is accused to be the killer because only the cops had Busujima's phone number, apart from his two accomplices. That point holds absolutely no weight; the killer is a killer because he, well, killed someone, and that someone was exactly one of those accomplices. It's a fact that can't be ignored by even the most ignorant investigator, especially with the accomplice's phone being directly involved in the murder. (00:10:15)
Inspector Kenmochi the Murderer File 2 - S1-E20
Continuity mistake: When Kindaichi confronts Akechi in the corridor of the station about his decision to issue an arrest order for Kenmochi, you can notice two billboards; the one to the left has a single poster on it, and its height (compare it to the ones on the board to the right) changes between shots. (00:07:30)
Inspector Kenmochi the Murderer File 1 - S1-E19
Continuity mistake: At the beginning of Akechi's flashback, Kenmochi is holding his clenched fists on top of a single open notebook. A second later he's doing the same, but on two separate pieces of paper. (00:14:40)
Inspector Kenmochi the Murderer File 1 - S1-E19
Continuity mistake: Erina just sent away the lawyer and the guy who raped his sister. She falls on her knees crying, and you can see on the floor some scattered boots lying around. Kenmochi helps her back on her feet, and the shoes are gone. (00:08:20)
Inspector Kenmochi the Murderer File 1 - S1-E19
Continuity mistake: When Kenmochi has tea with the sister of the victim, the cookies on the plates change position between shots. You can also notice in the same scene that the kettle's handle switches sides. (00:06:10)
Inspector Kenmochi the Murderer File 1 - S1-E19
Continuity mistake: When Kenmochi is praying at the altar of the victim from the old case, the burnt part of the incense changes length between shots. (00:05:55)
Murder at 10,000 Meters File 1 - S1-E15
Continuity mistake: Kenmochi is holding the handkerchief in different ways when he calls Akechi after discovering the smoke bombs. (00:11:30)
Murder at 10,000 Meters File 1 - S1-E15
Continuity mistake: Kenmochi hands Kindaichi the ticket. The ticket, as you can see by the black stripe, is facing the opposite way between shots. (00:03:50)
Inspector Kenmochi the Murderer File 2 - S1-E20
Character mistake: Not only the program of the police station computer misspells "Matching" missing the I, but the operator says that the print on the right is Kenmochi's and the left print is the one taken from the device; it's the other way around. (00:19:20)
Inspector Kenmochi the Murderer File 2 - S1-E20
Plot hole: The brief intermission when Busujima meets the 'killer', or at least the person wearing the hat, does not make sense plot-wise and is merely a dishonest way to trick the audience. It's not even something Busujima tells someone, so it can't be characterized as a 'unreliable narrator' device. (00:18:30)
Inspector Kenmochi the Murderer File 2 - S1-E20
Continuity mistake: The lawyer is thrown back by the explosion. Lying on the gravel, hurt, he raises his head in close-up to look at the fire. In the wide shot though, he's unconscious. (00:16:30)