'The Ghost Box Chamber' is one of Doraemon's gadgets that first appeared in: Halloween Gets Real! (Catch Those Ghost, Daze!)
Appearance[]
The box is small and transparent with ghost souls inside floating around like a swarm of fish and it's dangerous to operate if misused.
Function[]
It says that it's good for Halloween decorations for lighting and surrondings that will create an intense scary atmosphere and sometimes the gadget can be used for good things if you used it properly. However, disaster strikes when Tamako throws the gadget away thinking it's one of Nobita's toy, causing the box to crack and shatter, which freed the entire ghost inside of it, invading the whole Tokyo neighborhood. Luckily with the help of the whole characters in the series, they managed to stop the reign of terror and restored their neighborhood where it used to be.
Trivia[]
This counts as one of the most dangeous gadgets that Doraemon owned, following the Super Hyper Atomic Bomb.