Blood Pool Hall Murder Case File 1 - S2-E5
Continuity mistake: When Miyuki points out that the atmosphere at the other table is rather gloomy, Amamoto has her chopsticks raised in one shot, absent from view in the next. (00:14:00)
The Death March of Young Kindaichi File 3 - S2-E3
Other mistake: Kindaichi in this episode watches the footage of the events in the previous episode from Saki's handicam. Saki was running with the camera and the camera was jerking up and down a whole lot in those animations, but here the motion is very subtle. Li also was standing facing straight away from the door, parallel to it, but here he's more turned to the left.
The Death March of Young Kindaichi File 3 - S2-E3
Continuity mistake: The pile of bread that Longtao brings for breakfast changes between shots. (00:11:10)
The Death March of Young Kindaichi File 3 - S2-E3
Plot hole: The crowd freaks out when Matsuoka's body is found and Kindaichi happens to be standing in front of it, gun in hand. That's all sorts of silly though, not only because the killer could have never predicted that turn of events, but also because Kindaichi roamed the streets looking for Matsuoka, gun in hand the whole time (it's a different gun from the one Matsuoka is killed with), and it's a girl screaming that draws everyone's attention to the murder. What about the two gunshots? Everyone in the background was entirely unfazed. It also creates a separate issue in the ending, since the plan to frame Kindaichi was supposed to be 'perfect' but the different gun would have spoiled it. (00:08:35)
The Death March of Young Kindaichi File 2 - S2-E2
Plot hole: It's unreasonable, nor is explained in the denouement at the end of this arc, how did the murderer, who stayed behind everyone else on purpose, get to Shinomiya who was ahead of everyone, went inside the cave before everyone else and didn't have a reason to hide, cooperate with him or anything of the sort.
The Death March of Young Kindaichi File 2 - S2-E2
Other mistake: When Kindaichi rushes to Longtao's rescue, he is not carrying the flashlight with him. He's in a deep cave bunker with no light at all (plot point mere moments earlier), he should be blind as a bat. In the following episode he even searches for clues in the cave, again without the light.
The Death March of Young Kindaichi File 2 - S2-E2
Other mistake: The two survivors from 18 years prior approach the building with nothing on their person, then suddenly Matsuoka has a flashlight, which he gives to Shinomiya as he goes inside alone. Kindaichi and Longtao arrive, completely unprepared to any dungeon crawling, and the three of them go in with yet another flashlight. (00:13:50)
The Death March of Young Kindaichi File 2 - S2-E2
Continuity mistake: Kindaichi searches Akechi's wallet with his right hand, using the left hand to hold the wallet itself, but hands Longtao the taxi receipt using the left hand. (00:13:05)
The Death March of Young Kindaichi File 2 - S2-E2
Continuity mistake: When Kindaichi falls from the cart, the boxes around him are placed in a way that it's not just incongruous continuity-wise from shot to shot, but is also nonsensical; in one shot for instance he has a box through each leg, but since Longtao smuggled him out inside them, both legs had to be inside the same box; the cardboard was surrounding him. (00:12:30)
The Death March of Young Kindaichi File 2 - S2-E2
Continuity mistake: When Longtao carts away from the hotel the boxes, they are all the same texture, but when the wheel is caught in the step, the middle box is striped. (00:12:30)
The Death March of Young Kindaichi File 2 - S2-E2
Continuity mistake: Inside the laundry cart, Kindaichi asks Longtao where does he bring the linens. The cloth on top of his head slips behind him, but this happens again in the next shot; it's back on his head and drops all the way down again. (00:09:35)
The Death March of Young Kindaichi File 1 - S2-E1
Character mistake: For being a genius raised abroad, Takato's English pronunciation is abysmal - check out when he says the line about the magic crystal on stage. (00:12:40)
Inspector Kenmochi the Murderer File 4 - S1-E22
Continuity mistake: Flashback with Togami and Busujima chatting in the cafe; in the aerial widest shot, the orange juice is on the wrong side of the table, left of the plate instead of right. (00:12:15)
Inspector Kenmochi the Murderer File 4 - S1-E22
Audio problem: Busujima screams that he's not lying when the police inspector reminds him that Marina Togami's torture happened in his apartment. Despite the scream, his jaw is totally still in that shot (camera behind him, above the shoulder). (00:10:15)
Inspector Kenmochi the Murderer File 3 - S1-E21
Continuity mistake: When Miyuki offers the cake to Hajime-chan, the cup of coffee switches side of the table without her touching it - in fact her hands are busy with the cake, even. (00:20:10)
Blood Pool Hall Murder Case File 1 - S2-E5
Continuity mistake: The police is surveying the crime scene; the stones lie in different spots on the floor between shots (or rather, the scale of the floor boards changes, and the stain and stones stay the same). (00:21:15)
Blood Pool Hall Murder Case File 1 - S2-E5
Continuity mistake: On day 2, Kindaichi joins the captain in the dining room. She's reading a book with a cyan cover sporting a yellow rectangle. He sits with her, and the cyan book now has a single yellow line, no more rectangle. (00:16:30)
Blood Pool Hall Murder Case File 1 - S2-E5
Continuity mistake: Miyuki listens her friend explaining the origin of the expression "Blood pool" related to the game of Go. Her hand is in front of her mouth, but in a shot it's an open hand, in another it's a fist. (00:10:10)
The Death March of Young Kindaichi File 4 - S2-E4
Continuity mistake: At the beginning of the episode, the distance between the suspects and the proportions are noticeably different from the end of the previous episode, and between shots within this very episode too.