This is one of few episodes where multiple gadgets are used in the 2005 anime and English dub.
Doraemon can "speak lips" as his whispering is translated at the bottom of the screen of a viewer's television.
There is a closed captioning error in the English dub; when Sneech shudders after seeing the thief with Doraemon and Big G, the closed captions say that Noby shudders.
This is one of the episodes that don't have split episodes and aren't specials. Another example is Doraemon's Time Capsule.
On the Time TV, the 22nd Century creature mentions the collision of an asteroid with Earth, which occurred long ago.
The Earth exploding thought is infamous due to many cartoons having the Earth exploding in a thought.
This episode aired as the season finale of the first season of the U.S. English dub.
English dub edits[]
When Big G's mom hits the thief, what comes out of his gun is a white flag and not the flag of Japan, since the series is set in the U.S. and not Japan.
