The dancer is a female with pink hair. She wears some cube and oval headbands, a yellow shirt with some chihuahua plush heads along with a square-pattern skirt that is shaped similar to a Rubik's cube, some yellow and red spotted legging socks, and some black high heels with leg straps. At some points of the routine, the coach turns black and white. The dancer appears to be a paper cutout, as she seemingly peels off of the background revealing her to be flat, and completely white at the back.
The coach is a female that resembles Barbie. She has blond hair tied in a long ponytail with a pink headless cap, a pink crop top with the word Barbie written on it in several places, a golden necklace, a violet fingerless glove, purple tight pants, and a pair of pink sneakers.
There are 3 Gold Moves in this routine: Gold Move 1: Lift your right arm and right leg up, making a cute pose. Gold Move 2: Make a peace sign with your right hand. Gold Move 3: Put both hands on your mouth, as if you're sneezing. This is the final move of the routine.
Gold Move 1
Gold Move 1 in-game
Gold Move 2
Gold Move 2 in-game
Gold Move 3
Gold Move 3 in-game
There are 4 Gold Moves in the Remastered Version: Gold Move 1: Punch your right fist, and then your left. Gold Moves 2 and 3: Make a half moon with your right arm, and at the same time throw it up. Gold Move 4: Perform a dab move by raising your right arm to your face and your left arm outwards. This is the final move of the routine.
Gold Move 1
Gold Move 2 & 3
Gold Move 4
Gold Move 1 in-game
Gold Move 2 & 3 in-game
Gold Move 4 in-game
There are 2 Gold Moves in the Mashup: Gold Move 1: Bend over and scoop your arms. (Born This Way [Nerd Version]). Gold Move 2: Raise both of your hands up toward the sky. This is the last move of the Mashup. (You Make Me Feel...).
An unused move is seen in the Behind-the-Scenes video.
If you look closely, you can see the dancer lip-syncing during the entire song.
On the PAL cover, her glove is purple, her hair is shorter, her shirt is pink, and her buns are missing.
The dancer is featured on the PAL and NTSC box art.
The translation of "Wanko Ni Mero Mero" from Japanese to English is "Madly in Love With the Doggy".
Besides the sentence "The dog accidentally [gibberish]..." in Japanese, "I want a chiwawa" being spelled out in English, the word "Sorry!", "Let's go one more time!" and "Achoo!" at the end of the bridge, the song consists entirely of gibberish and Japanese onomatopoeia.
The audio was first released on the German Amazon website.
This song's official release date was on September 29, 2015, which makes it the latest released song to be featured in Just Dance Now.
They both appeared in the beta version of the Dance Quest icon earlier.
At BGS (Brasil Game Show) 2015, a Community Remix for this song was seen in the menu. However, when the game was released, Uptown Funk’s Community Remix was included instead.
From March 23, 2016 to March 25, 2016, Chiwawa was free on Just Dance Now to celebrate "National Puppy Day".
In the Behind the Scenes video of the routine, Mehdi and Aurélie can be seen performing a move that is not present in the actual routine.
On the album coach for I Gotta Feeling Showtime, the animals that appear in this song's background are detailed differently.
Also, a coach can be seen in the Showtime video itself. 
This is the second song in the series to feature a coach with a paper-like outline, after No Control, and later being followed by Don’t Stop Me Now (both versions).
The Alternate of Don't Stop Me Now recycles the outline style from this coach.
As seen on the PAL boxart, on the Just Dance website, and on the Youtube thumbnails the coach was going to have beta outlines. On the PAL boxart its yellow, on the website its purple and on the thumbnails its a white outline without the paper effect.
The song was played during the play-off of the Just Dance World Cup 2015.
In an episode of Ray Donovan (Season 4), the routine along with Stadium Flow makes an appearance.
According to a Just Dance Lesson made by Aurélie Sériné, the chiwawa that appears in the background of both routines is called Winky.
The Wii U/PC version and the Xbox One/PS4 version of the alternate used to have some differences for a short period of time:
In the former, the dollhouse is seen as a plain purple silhouette, while the Xbox One/PS4 version applies some shading effects on it.
The Wii U/PC background is plain blue and its pattern has many B's for Barbie, while the Xbox One/PS4 background has a gradient and has a pattern with chihuahua heads and the Barbie logo.
The chihuahua dog that sometimes pops up in the Xbox One/PS4 version is totally absent in the Wii U/PC version.
The background in the chorus is entirely recycled from the Classic routine on Wii U/PC, but it has some additional elements on PS4/Xbox One.
The Xbox One/PS4 version has some additional animations.
The cutscene where the coach rides a pink coupé with a chiwawa sitting on her left is not featured in the Wii U/PC version, although the car and the barking chiwawa can still be heard.
As of January 30, 2017, the video on Just Dance 2016, Wii U and PC has been replaced with the one being used on the Xbox One and PS4.
The remastered alternate for the song is likely due to the song and routine being used in Barbie Video Game Hero. A dance battle of Chiwawa is the last level that Barbie needs to play in order to beat the virus.
When the Remastered Version was first added to Just Dance Unlimited along with Don’t Worry, the routines did not have the "NEW" indicators, and the routines were only accessible through the Recommended section.
These errors have been fixed as of an unknown date.
The Alternate routine is the fourth in the series whose code name is not (SongName)ALT. It is preceeded by the three Contest Winners from When I Grow Up, which are named contest1, contest2 and contest3 in the files.
Swish Swish's P2 reuses the puppy heads from the Classic coach's outfit.
A different preview for the Alternate routine is featured on the official Barbie YouTube channel. It features the end of the song and has a different interface than other songs' previews. The lyrics are visible and there are only four players instead of six. In addition, instead of the "players" scoring randomly, they score only GOOD and YEAH, and they all score the exact same amount of points, although only "Happy" has the crown.
In the dash.justdancenow.com gameplay for the Alternate, the pictograms have completely changed assets: the end of the slide has a different beat effect, and the pictograms pulse to the beat of the song and flash white before fading off; plus, the Gold Move pictograms (except for the last one) have an animated glow behind their torso.