P1 is a female bat. She wears a lilac suit with a violet leotard that has a light yellow torso section and a light yellow forehead, a pair of red cat ears, a purple mask, a pair of bat wings, and a pair of black boots.
P2 is an anthropomorphic pumpkin. His head is covered by a carved pumpkin, and he wears a purple coat with red buttons, a black shirt underneath, a red belt, a purple-and-violet striped pair of trousers, and black shoes.
P3 is an evil doll. She has fuchsia hair with white highlights, pink skin, heavy make-up around her eyes, an aqua necklace, a yellow bra, a mint green sleeveless dress with yellow-and-black spotted parts and a white belt, along with a yellow-and-aqua striped part at the bottom, aqua and white striped high socks, and violet heels.
P4 is a male ghost with a scar on his body and two grey arms. He is legless and floats.
At the start, the background is set in an animated graveyard with the name of the song at the top and features decorated with leafless trees and pumpkins. The creepy moon and the jumping pumpkins, as well as a haunted house, is in the background. At parts of the song, the background is changed to a dark blue showing doors, old-fashioned candles, and more. Halfway through the song, the numbers on clocks are shown (the one on the left is in backwards towards a warp).
Ghost In The Keys has a Mashup with the theme "Swag". This mashup features only male dancers.
In the Mashup, Taste The Feeling does not turn white in its first appearance. Due to this, the pictograms for that part were remade.
The dancer in the cover of Ghost In The Keys (Mashup) cover is from So Good, a song that was supposed to be in Just Dance 4 but was not included for unknown reasons.
One part of P4’s Gold Move is mirrored.
In the Italian version of the game, the Mashup theme is mistranslated as "Festone" (Festoon).
"Swag" can also be a synonym of "festoon", but it actually means "charm" in this case.
Ghost In The Keys (Mashup) is the fifth Mashup to be an all-male Mashup.
P4’s routine was recorded separately from the other coaches’. This is proven by the fact that P4 has a differently designed outline and, in one of the concept art pictures, he does not appear with the other dancers.
Ghost In The Keys is the only song in Just Dance 2017 to have a Mashup but no alternate routine.