Kaito Deluxe has a cool design (think phantom thief meets clockwork knight), but his backstory is resolved too quickly. Compared to some of the darker Doraemon movie villains, he lacks real menace.

The film provides a rare look at the history and manufacturing of secret gadgets, including the materials used to create them.

The museum’s “escape room” challenges are fun, but some puzzle sequences drag. A long sequence involving a giant maze and a talking clockwork bird feels like filler. Younger kids might get restless before the explosive third act.

Unlike some Doraemon movies that lean heavily into tear-jerking drama (like Stand By Me ) or high-stakes sci-fi, this one is a good old-fashioned whodunit. The pacing is tight, and the mystery keeps you guessing without being too complex for children. The interactions between the gang and the new characters, particularly the detective Ketsu, are fun and dynamic.