Just Dance 2015/Beta Elements

On Stage Mode

 * According to Just Dance Game site, On Stage Mode was going to return to the game, but it didn't.

Dancers/Songs and Gameplay

 * Problem's glove was neon green for a period of time, but it changed to purple on the final game.
 * Love Is All's P1 was supposed to have a blue dress but in the final game, her dress is pink. This beta element can be seen while downloading a DLC.
 * Built For This had green shoes and a different colored belt, as shown in the Beta preview.
 * Dancing Queen was mentioned by Ubisoft, but it wasn't added to the game. However, some files have been found in the archives of the game.
 * You Never Can Tell by Chuck Berry was supposed to appear in the game too, but only its files are there. This song ended up appearing in Just Dance 2016, covered by A. Caveman and The Backseats with a remade version.
 * Bailando P1's dress was purple for a period of time, but it changed to red on the final game.
 * You Spin Me Round (Like a Record) had different colored shades (silver and gold instead of purple and silver). This Beta element can be seen in the menu image.
 * First, Get Low's dancers skin was white, but then it was changed to black. This Beta element can be seen in the "Customize your Dancer Card!" icon, where P1's avatar is depicted with white skin.
 * The dancers from It's My Birthday originally had different colored clothes and different colored pictograms.
 * A woman in a Santa dress appears in the Dark Horse Mashup and in many Party Master Modes; later, it has been proven that it was for All I Want for Christmas Is You by Mariah Carey.
 * A woman with brown curly hair, red jacket, yellow shirt underneath, purple skirt with yellow dots, red leggins and brown heels appears in the Ain't No Mountain High Enough Mashup. It was for Respect by Aretha Franklin.
 * In the beta version of Birthday, copies of the coach in the background weren't green and weren't 3D. Also they were wearing boots in a different color than the dancer.
 * In the beta version, The Fox (What Does The Fox Say?) was just called "The Fox."
 * The lyric colour of The Fox was red. It's changed to orange.
 * If you look into the Just Dance Now files for Bang Bang, you can notice that the dancers originally had a different colour scheme.
 * Happy has an unused pictogram.
 * Kiss Kiss can be found in the NTSC files of the game.
 * The game files contain a MashUp for Kiss Kiss; the theme is Cowboy, and the icon dancer is Waking Up in Vegas.
 * Addicted To You has two unused pictograms. The strangest fact is that they're purple instead of orange, because they're based on how the coach looks like behind the scenes.
 * Speedy Gonzalez has 7 unfinished pictograms.
 * Maps has 4 unfinished pictograms (including a placeholder one, which also appears in the files for Addicted To You and Dare, and an unused Gold Move).
 * I Love It originally had a different color scheme, as seen on the NTSC cover for the game.
 * Dark Horse has 4 Beta pictograms. Looking at it, it shows the moves done in the chorus meaning that the dancers weren't originally going to change in the chorus.
 * Party Master Mode was supposed to return on Xbox 360 and Xbox One, as its files were found in the Xbox 360 files of the game.
 * The backup dancers in I Luh Ya Papi were in full opacity.
 * The Gospel singers in Happy were going to appear as yellow slihouettes, according to a Beta picture. In the same image, an incorrect pictogram recycled from Good Feeling appears.
 * In a Beta gameplay of Black Widow, the coach makes one of the poses that she does when she turns red; however, in that picture, she is still blue.
 * Birthday seems to have lots of changed features: in a picture, her outline is orange instead of light blue; in the preview video, the arrows for the pictograms are fuchsia instead of red; in the Just Dance Now files, there are some Behind-The-Scenes pictures showing the coach into black rectangles; in the Just Dance Awards picture, her outline is faded instead of being thick.
 * The coaches from Bang Bang had more visible facial features than in the final version.
 * P2 of Don't Worry Be Happy was supposed to have a different pose in the coach selection menu.
 * The Sing-Along version of Let It Go had a different menu icon, as seen in the shop.
 * In the menu icon of Macarena, the orange-dyed part of P4's hair is more brown than orange. Also, P3's hair is more lighter.
 * In the files, unused Mashups for Get Low, Diamonds, Kiss Kiss and I Luh Ya Papi can be found.

Unknown Dancers

 * An unknown avatar can be found in the avatar shop.
 * A boy and a girl in a prehistoric outfit appear during a download of a DLC on the Wii, during uploading an Autodance and on the icon of playlist in the Beta version (partly on the icon in the final version). This turned out to be You Never Can Tell, which eventually featured on Just Dance 2016.

Menu, Scoring (Graphical), Avatars and Community Remix

 * In a video when seeing the gameplay of Burn on the PlayStation 4, looks at the punctuation at the end of the Xbox 360 interface. What can be seen well is that the player was playing with the PS4 camera, besides seeing many glitches. This means that the use of the interface based on the Xbox 360's final production.
 * The avatars weren't going to have the sticker appearance, but it was added in the final version.
 * The effect before the scorings was equal to Just Dance 2014. Then it was changed, as shown in the full gameplays of 4x4, Macarena, Problem and Built For This: it has an effect similar to Just Dance 4, with squares "closing" the dance and showing the writing "Just Dance 2015," but the scoring graphical effects still remain the same.
 * The menu was less animated and the menu icon of Holding Out for a Hero was different and the icon for the Party Master Mode was different as well.
 * The X, OK, GOOD and PERFECT have a bounce effect in Beta versions (like in Just Dance 2014) but it changed in the final version of the game. The Gold Move effect was the same as Just Dance 2014 too.
 * It was possible to use some preset nicknames for P1 that have been taken out of the game, like "Nintendo_E3," "Gamescom" and "Mii."
 * Party Master Modes were initially seen alone in the menu (right after the playlist icon); in the final version, they appear in a separated section.
 * The Mojo Coins had a different design.
 * The menu looks a bit darker and the icons were less animated.
 * The playlist icon was a bit different in the version from E3 2014. The square of the unknown duet was seen on it, however in the final version a very small part of this square which is also seen there).
 * The song icons were originally going to have the glass effect, like all of the icons in Just Dance 2014, but the effect was removed for some unknown reasons.
 * Community Remix was first called  Dance Mix" ''and it had the Just Dance 2014 interface.

Sections

 * Most Popular in the beta was called "Popular Songs."
 * In the files for the game, it can be seen that there are a lot of unused sections. Here is the list of all of the currently unused sections:
 * Sorted by Artist
 * Party Songs
 * Slow Songs
 * Happy Songs
 * Sweet Songs
 * Easter Songs
 * Summer Songs
 * Winter Songs
 * Autumn Songs
 * Spring Songs
 * Christmas Songs
 * Hanukkah Songs
 * Ramadan Songs
 * Couples
 * Family Songs
 * Oldies But Goodies
 * Sixties Songs
 * Seventies Songs
 * Eighties Songs
 * Nineties Songs
 * Sing-a-Long
 * Chorus Songs
 * Just Sweat
 * Greatest Hits
 * Kids
 * Latino
 * Hollywood
 * Around The World
 * Pop
 * R&B Vibes
 * Electro Sounds
 * Just 80's
 * Extreme
 * Easy
 * Pop Hits
 * Disco Classics
 * Caliente
 * Just Dance 1
 * Just Dance 2
 * Just Dance 3
 * Just Dance 4
 * Just Dance 2014
 * Just Dance 2015

Textures

 * In the files of the app, there are some progression textures which can be found in the "drawable-hdpi-v4" folder. The said textures bears a strong resemblance to the song levels (which gives Mojo Coins and avatars in-game), as there are some images named "progress_current_(1 to 3)/progress_done.png", which can possibly mean that the textures were for an early version of the song level feature.
 * Also, there are some other textures that includes "quest" in their filenames. These, of course, are unused as well.

Avatars and Interface

 * While the app was still in beta, the game was going to use the avatars from Just Dance 2014; However, when the app was officially released, they were replaced with Just Dance 2015's avatars.
 * In the beta version of the menu, there was a line of text under the "PLAY" button reading: "View all songs" and tapping on it would bring up the tracklist. However, ever since the official release, the line of text was removed and there is now a pink corner at the top-left corner of the screen showing the amount of songs there are in the game, and a line of text on there reads: "VIEW SONG LIST".
 * In the beta version of the menu, one of the unknown dancers for Just Dance 2014 (the one with the red, white, and blue spiky jacket) and the dancer for Starships appeared at the sides of the screen. However, ever since the release, they got replaced by the coach from You Make Me Feel... and P1 from Turn Up the Love.

Gangnam Style

 * There was a photo showing the gameplay, but the dancers, the background, the pictograms and the avatars were inverted in colour. The photo was on the official website for Just Dance, but it was later changed.

Call Me

 * Call Me was originally going to have dark blue lipstick and dark blue background (instead of pink). However, this has been changed.

Hot n Cold

 * As seen in the files, Hot N Cold was more similar to the original version, since it had red hair, red gloves and a more reddish dress; it was changed after some time.

Body Movin'

 * Body Movin' had more visible facial features (akin to Call Me), but it got changed too.

Heart of Glass

 * Heart of Glass was originally going to have a different background and the coach was more similar to the Just Dance 3 version, but it was changed later.

E.T.

 * In it's first versions, E.T. had dark purple pictograms and light green arrows (from the original version). But, since the URL number 20150408_1230, it now comes with light purple pictograms and yellow arrows in the files, and the Gold Moves seem to be less shaded than the previous version. However, the menu image stays the same.

Airplanes

 * As seen in the server files, the coach seems to be more similar to his original status.

Safe And Sound

 * Safe and Sound was going to use its original icon, as seen in the server files.

Rasputin

 * Rasputin initially used the remake that appears in the icon of the Never Can Say Goodbye Mashup for some reason; it was replaced later.

Oath

 * In the menu image of Oath, P2 had more visible facial features, and her glove was pink and badly textured. As of 20150115_1722, the image has been updated so that the facial features are no longer visible and the glove is blue (as it does in-game).

Toxic

 * Until the URL number 20150325_1222, Toxic was supposed to appear in the app without any edit; however, the files were removed and re-added in the URL number 20150422_1529, with a different icon and some remade pictograms.

I Get Around

 * In its first release, I Get Around didn't have Gold Moves, but, since the URL number 20150422_1529, it does.

So Good

 * So Good had a different menu square, that features the coach in a different position. Since the URL number 20150513_1617, it has been updated.

Blurred Lines

 * The fanmade square was not supposed to have a border.

Big Girl (You Are Beautiful)

 * There are 3 placeholders in the files.

All About That Bass

 * All About That Bass had a different cover in its first release in the files.

Smile (Улыбайся)

 * Smile (Улыбайся) originally had a different code name in the files; instead of "Ulibayssia", it was "Smile".

Better When I’m Dancin’

 * Better When I’m Dancin’'s coach is different in Just Dance Now. Her hair is in a darker shade of blue.
 * Additionally, the purple flowers that at one point appear in the background of the Just Dance Unlimited version are replaced by butterflies.

Maneater

 * The cover of Maneater was going to use the coach's pose from Just Dance 4; it is replaced by the menu icon pose in the final version.

Promiscuous

 * If you explore the files through the bundles' archive, you can notice that the coaches' outline was originally dark purple and in full opacity instead of fuchsia and faded. Also, in a beta square and cover, the coaches look poorly extracted, as they have a white outline with some bits cut out.