Nobita's mom tells him to clean up his room but he is too lazy so Doraemon gives him a tube of small metal balls which when placed on something inanimate make it behave like a machine and so do what you want. Things start off well, but everything revolts against Nobita and things end up worse than before, just as his mother comes home.
| Creator | N/A |
|---|---|
| Actor | Nobuyo Oyama, Noriko Ohara, Sachiko Chijimatsu |
| Country | Japan |
| Production | Shin-Ei Animation |