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Hatsune Miku: Colorful Stage!

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Title Screen

Hatsune Miku: Colorful Stage!

Also known as: Project SEKAI COLORFUL STAGE!
Developer: Colorful Palette
Publisher: Sega
Platforms: iOS, Android
Released internationally: December 7, 2021
Released in JP: September 5, 2020
Released in KR: May 20, 2022
Released in TW: September 30, 2021


AreasIcon.png This game has unused areas.
DevTextIcon.png This game has hidden development-related text.
GraphicsIcon.png This game has unused graphics.
ModelsIcon.png This game has unused models.
MusicIcon.png This game has unused music.
SoundIcon.png This game has unused sounds.
TextIcon.png This game has unused text.
Carts.png This game has revisional differences.


<Sanky> please suggest an unused sprite with a clock or something
This game is still under active development.
Be aware that any unused content you find may become used or removed in the future. Please only add things to the article that are unlikely to ever be used, or went unused for some time. If they do get used, please remove them from the page and specify in the edit summary!

Project SEKAI feat. Hatsune Miku: Colorful Stage! is a rhythm mobile game where virtual singers meet real characters and strive to find their true feelings.

Early Game Testing

The screenshot shows the testing of the game. It could be a rework of another game.

At the top we see the color palette and where the sprites are placed. The overlay is up to date, but some borrowed resources are used in the background. We see the audience and the main stage with character silhouettes. Skill effects are shown by all 5 selected cards appearing below the board.

The characters and cards in the screenshot are from the mobile game: THE iDOLM@STER Cinderella Girls: Starlight Stage.

Name Image
01_ingame_skilleffect Project Sekai - Skill Effect Testing.png

Screenshots of various areas are scattered throughout the files. By their filenames they were probably there to show the completed progress of decorating them.

Name Image
temp Project Sekai - School area with accessories.png
guide Project Sekai - Wonderland SEKAI with accessories.png
【ステージのセカイ】エリアマップ ([Stage Sekai] Area map) Project Sekai - Stage SEKAI with accessories.png

To test the acquisition of cards of different levels, Ichika, Saki and Shiho cards were used. In place of card's name is '冠名最大10文字想定' (Chinese for 'Assuming the title can be up to 10 characters'). One of the screenshots has the resolution data on it.

Name Image
後半星2サンプル (Late 2 Star Sample) Project Sekai - Late 2 Star Sample.png
後半星3サンプル (Late 3 Star Sample) Project Sekai - Late 3 Star Sample.png
後半星4サンプル (Late 4 Star Sample) Project Sekai - Late 4 Star Sample.png

Unused Audio

Songs

In the files is preview for "The Intense Voice of Hatsune Miku" without the silence on the end.


There used to be a custom music track test_bgm that played during story scenarios.

Note Hit

There are 6 alternative variants of note hit sounds. Compared to the original one, they lack other audio files.

Name dummy01 dummy02 dummy03 dummy04 dummy05 dummy06
se_live_connect
N/A
se_live_connect_critical
se_live_critical
se_live_flick
se_live_flick_critical
se_live_good
se_live_great
se_live_long
se_live_long_critical
se_live_perfect
se_live_tap

Unused Areas

There are two unused areas in the game demo.

Name Possible appearance
area_legacy Project Sekai - Area Legacy Test.png
area_sample Project Sekai - Area Sample Test.png

Following the shops seen in area_legacy, this could be the place where you separately buy costumes, accessories, perhaps upgrade buffs for the game and so on.

You can identify places such as: PIZZA350, NEGIラーメン (NEGI-ramen), Grafitti, CARDS, Mr.BURGER, Le guance di Angel (Italian for 'Angel's Cheek'), Lemon, Black Tea, Three9, Bishopl Light, DRIGHT, 本Bookstore, Daig, Planet, 100, コミック (Comic Shop), Galaxy GAME station, CREPE PEARIS

On the monitor visible in the area_sample we see the placeholder of one of the card.

There are also a few shop boards probably associated with the area_legacy map.

Name Image
areaItem_01_sample Project Sekai - Shop Board 1.png
areaItem_02_sample Project Sekai - Shop Board 2.png
areaItem_03_sample Project Sekai - Shop Board 3.png


Area2 (Main Street) once had a sprite of one of the buildings with a grammatical error.

Interestingly, the Mr.BURGER restaurant that used to be in the area_legacy is visible in the scenery of this area.

Name Image
right Project Sekai - Area2 Old Building Sprite.png


Unused Mechanics

There is a proposal for a device icon. Because of its name, it could be used to take the user to an online forum or to private messages directly from the map.

Name Image
worldMap_chatRoom Project Sekai - WorldMap ChatRoom.png


To get from one SEKAI to another, the player would have to switch songs in the playlist. An example of this can be seen in old videos of the game.

Name Image
text_playlist Project Sekai - Playlist Text.png
Example

Unused Models

3D Outfits

There is an additional Miku model in the game demo.

Since it is named the same as the Virtual Singer Miku body model in the files, it may have been decided to change the design to something more along the lines of her original box-art.

Its highlight map particularly stands out from the others by using blue instead of red and green to store data for effects.

A fragment of this costume can also be seen in an early illustration of Miku.

Loading a model in game will force a T-Pose on it. It lacks visibility switches, causing it to not appear back in 3DMVs such as 'Miku' and 'Ghost Girl'.

Name Render In-Game
mdl_bdy_MIK_00 Project Sekai - Unused Miku Model Render.png Project Sekai - Unused Miku Model InGame.png
Name Image
tex_bdy_MIK_00_C (Color map) Project Sekai - Unused Miku Model Color.png
tex_bdy_MIK_00_H (Highlight map) Project Sekai - Unused Miku Model Highlight.png
tex_bdy_MIK_00_S (Shadow map) Project Sekai - Unused Miku Model Shadow.png

Unused Textures

Cards

There is one unused set of cards in the game files.

Despite the abbreviated folder name, it appears that this was the first card for a character with index 19 (now Ena). Perhaps it is the main character of the game, Ichika.

The character shown in the trained version does not appear currently in the game.

Normal version Trained version
A sketch of one of Miku's first cards. Marked with ラフ (rough).
Placeholder for the trained version of the card. Marked 仮画像 (provisional image).

Comic

There exists an unused 1koma depicting Minori and Ichika in form of a full image and a cropped sprite.

Name Image
comic_sample Project Sekai - Unused 1koma.png
tips_sample Project Sekai - Unused 1koma Tips.png

Characters

Along with close-ups of the card characters, a screenshot showing Miku is included. The graphic style is reminiscent of BanG Dream! Girls Band Party!, suggesting that the same team may be working on this game. This is most likely the version for the Virtual Singer unit. A custom 3D model was created for this costume.

Name Image
dummy_normal Project Sekai - Old Miku Live2d.png

Gacha

There are three gacha in the game's demo, despite not being able to make any use of them.

  • First gacha corresponds to the first gacha of the game.
  • Second gacha offers 4-star card intake.
  • Third gacha offers 3-star card intake.

The illustrations of the last two show early character card drafts, and the backgrounds, probably an early concept of the MoreMoreJump unit. Presumably in order from left: Miku, Haruka, Airi, Minori, and Shizuku.

Gacha Background Featured Image Overlay
ab_gacha_1 Project Sekai - Gacha Background 1.png
bg_gacha0001
Project Sekai - Image Gacha 1 1.png
img_gacha0001_1
Project Sekai - Image Gacha 1 2.png
img_gacha0001_2
ab_gacha_2 Project Sekai - Gacha Background 2 and 3.png
bg_gacha_nomal_ID
Project Sekai - Gacha Character 2.png
chr_gacha_beginner_ID
None
ab_gacha_3 Project Sekai - Gacha Background 2 and 3.png
bg_gacha_nomal_ID
Project Sekai - Gacha Character 3.png
chr_gacha_ticket_ID
None

Overlay

Rhythm Game Overlay

There is a version of the static clipped lifebar. It was probably in use before any code was developed for it.

Name Image
LifeGage_Dummy Project Sekai - Dummy Life Bar.png

Visual Novel Overlay

In old videos of the game, you can see that the chat box with text and related objects were slightly different.

Miku's introduction


A zoomed out version of one of Ichika's stickers appears in the timeline_test screen effect.

Name Image
ichika Project Sekai - Ichika Screen Effect.png

Thumbnails

Costumes

Early placeholders of the default outfits showed the models in an A-Posing state. Compared to the current style, they are on a dotted background. The skin and some parts of the models have been erased (some manually).

Name Image
body01_0001 (Ichika) Project Sekai - Placeholder Costume Thumbnail - Ichika.png
body04_0001 (Shiho) Project Sekai - Placeholder Costume Thumbnail - Shiho.png
body05_0001 (Minori) Project Sekai - Placeholder Costume Thumbnail - Minori.png
body06_0001 (Haruka) Project Sekai - Placeholder Costume Thumbnail - Haruka.png
body07_0001 (Airi) Project Sekai - Plaholder Costume Thumbnail - Airi.png
body08_0001 (Shizuku) Project Sekai - Placeholder Costume Thumbnail - Shizuku.png
body10_0001 (An) Project Sekai - Placeholder Costume Thumbnail - An.png
body12_0001 (Toya)
dummy_costume
Project Sekai - Placeholder Costume Thumbnail.png
body21_0001 (Miku) Project Sekai - Placeholder Costume Thumbnail - Miku.png
body02_0001 (Saki)
body03_0001 (Honami)
body09_0001 (Kohane)
body11_0001 (Akito)
body13_0001 (Tsukasa)
body14_0001 (Emu)
body15_0001 (Nene)
body16_0001 (Rui)
body17_0001 (Kanade)
body18_0001 (Mafuyu)
body19_0001 (Ena)
body20_0001 (Mizuki)
body22_0001 (Rin)
body23_0001 (Len)
body24_0001 (Luka)
body25_0001 (MEIKO)
body26_0001 (KAITO)
Project Sekai - Placeholder Costume Thumbnail - Empty.png

There are placeholders for two accessories without backgrounds. All three variants are duplications.

Name Image
head0012
head0012_01
head0012_02
head0012_03
Project Sekai - Head Accessory 0012.png
head0014
head0014_01
head0014_02
head0014_03
Project Sekai - Head Accessory 0014.png

There are placeholders for accessories marked with なし (None).

Name Image
head0017
head0020
Project Sekai - Empty Head Accessory 0017.png
head0019
head0021
head01_0001
Project Sekai - Head Accessory 0019.png

These are placeholders for accessories. At this point, instead of renders, there was a drawing of two star-like earrings.

Name Image
From head02_0001 to head26_0001 Project Sekai - Head Accessory Drawing.png

There are placeholders created to test characters' hairstyles.

Name Image
cos9001_hair
テスト用寧々ヘア(Nene's hair for testing)
Project Sekai - Test Hair Nene.png
cos9002_hair
テスト用えむヘア(Emu's hair for testing)
Project Sekai - Test Hair Emu.png
cos9003_hair
テスト用司ヘア(Tsukasa's hair for testing)
Project Sekai - Test Hair Tsukasa.png
cos9004_hair
テスト用彰人ヘア(Akito's hair for testing)
Project Sekai - Test Hair Akito.png

There is a version of the current render of Ichika's costume, but on the old dotted background.

Name Image
ichika Project Sekai - Placeholder Ichika Outfit Thumbnail.png

From body_0001 to body_0021 along with other variations are thumbnails of the first 21 custom outfits from the game demo. Everything is currently under the name "cos_XXXX".

Texture Remnants

The textures used in the "At The God's Mercy" 3DMV's scene have not been baked. After removing the transparency, for example, we see that the mountains have a bit more formation and the fence has an expanded pattern. The screenshots used in the decorations come from the original music video.

Name With Transparency Without Transparency
tex_BG_N_stage_02 Project Sekai - 0201 Main Stage Texture Transparent.png Project Sekai - 0201 Main Stage Texture.jpg
tex_cutout_stage_01 Project Sekai - 0201 Cutout 1 Transparency.png Project Sekai - 0201 Cutout 1.jpg
tex_cutout_stage_02 Project Sekai - 0201 Cutout 2 Transparency Fix.png Project Sekai - 0201 Cutout 2 Transparency.jpg
tex_cutout_stage_03 Project Sekai - 0201 Cutout 3 Transparency.png Project Sekai - 0201 Cutout 3.jpg


There also happens to be some unmapped details below the scene's screen texture.

Name Image
tex_moni_anime_03 Project Sekai - 0201 Anime.png

Differences

Gacha

In many of the gachas featuring custom costumes, the performers are stiffened from the upper torso.

Two examples:

with Ready Steady with Ice Drop

3DMV on YT

Wherever there was a 3DMV preview on the game's official channel, the effect of custom outfits changing skin color depending on the character has been disabled, leaving the skin in greyscale.

Two examples:

with As You Like with Ultramarine Hymn

Early Song Covers

The first trailers for the game featured a slightly different voicetrack. This includes different Vocaloid tuning and additional voice sound effects.

Two examples:

with Melty Land Nightmare with Sweet Magic

Unseen Developer Text

Character Units

Alternatively, the game addresses its units by facilitated names.

* Virtual Singer - "Piapro"
* Leo/Need - "Light Sound"
* More More Jump - "Idol"
* Vivid Bad Squad - "Street"
* Wonderland x Showtime - "Theme Park"
* 25ji. - "School Refusal"

3DMV

In a similar way, a couple of the song titles are given edited names (this involves shortening and encoding their characters).

* The World Hasn’t Even Started Yet - "SMH"
* Ready Steady - "Readysteady"
* Forward - "Forword"
* needLe - "Needle"
* Dance Robot Dance - "DRD"
* Chururira Chururira Daddadda! - "チュルリラ" (Chururira)
* Miku - "anamanaguchi"
* Flyer! - "Flyer! "