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 3 - S2-E3
Plot hole: Kindaichi bases his solution on a fact (there was a certain object on the elevator together with the victim) he couldn't know about, since Li did not mention it (and if he did, he would have been on the right track to solve the mystery himself).
The Death March of Young Kindaichi File 3 - S2-E3
Continuity mistake: When Kindaichi shows the newspaper explaining to Kenmochi (and the audience) the mystery behind Akechi's death, he holds it in close-up with his finger between the second and third character from the right, the third and fourth in the next shot. (00:16:25)
The Death March of Young Kindaichi File 3 - S2-E3
Continuity mistake: When the police blocks the alley where Matsuoka was killed, the corpse is gone, but the first shot of Li in the alley shows the body being wheeled away in the foreground. (00:09:15)
The Death March of Young Kindaichi File 3 - S2-E3
Continuity mistake: After the flashback to the event of 18 years earlier, there's a side view of Matsuoka's face who says that they feared Jun would be still alive. The stack of papers on the desk is more towards the center of the desk than it is in the rest of the scene. (00:08:05)