Hatsune Miku -Project DIVA- (series)

初音ミク -Project DIVA- (Hatsune Miku -Project DIVA-) (also known simply as Project DIVA, and abbreviated as PD) are a series of video games by SEGA starring Hatsune Miku, along with other fellow Crypton VOCALOIDs, including popular fanmades. The premise of the game is rhythm action and players need to press a certain sequence of buttons to keep in play. A member of the Japanese idol group Hello!Project, Yui Ogura (小倉唯), provided the motion capture for Hatsune Miku. Though started in 2009, the 初音ミク -Project DIVA- franchise is one of SEGA's longest-lasting franchises, and one of the few that still has games being made. Miku has since become one of SEGA's mascots, as well as (alongside her fellow Crypton Vocaloids) an official and copyrighted SEGA character.

List of Hatsune Miku -Project DIVA- Games
Main series game: Spin-offs: Mobile Apps
 * Hatsune Miku -Project DIVA- (July 2, 2009; PSP)
 * Hatsune Miku -Project DIVA- Dreamy Theater (June 24, 2010; PS3)
 * Hatsune Miku -Project DIVA- Arcade (January 2010; SEGA RingEdge)
 * Hatsune Miku -Project DIVA- 2nd (July 29, 2010; PSP)
 * Hatsune Miku -Project DIVA- Dreamy Theater 2nd (August 4, 2011; PS3)
 * Hatsune Miku -Project DIVA- extend (November 10, 2011; PSP)
 * Hatsune Miku -Project DIVA- Dreamy Theater extend (September 13, 2012; PS3)
 * Hatsune Miku -Project DIVA- f/F (August 30, 2012; PS VITA/PS3)
 * Hatsune Miku -Project DIVA- Arcade Future Tone (November 21, 2013; SEGA Nu)
 * Hatsune Miku -Project DIVA- F2nd (March 27, 2014; PS VITA/PS3)
 * Hatsune Miku and Future Stars Project mirai (March 8, 2012; Nintendo 3DS)
 * Hatsune Miku Project mirai 2 (November 28, 2013; Nintendo 3DS)
 * Miku Flick (iOS)
 * Miku Flick/02 (iOS)
 * Hatsune Miku Live Stage Producer (Android and iOS)

Upcoming:

List of Playable Characters
Main Characters: Other Characters
 * Hatsune Miku
 * Kagamine Len
 * Kagamine Rin
 * Megurine Luka
 * MEIKO
 * Sakine Meiko
 * KAITO
 * Akita Neru
 * Yowane Haku
 * Kasane Teto
 * GUMI

References to/in Other SEGA Franchises
Several references to and in other SEGA franchises have been made in the series, and Miku herself has crossovered to other SEGA franchises:

SONIC THE HEDGEHOG

 * Hatsune Miku -Project DIVA- 2nd - One of the unlockable items (which is also Rin's favorite) is the Piko Piko Hammer, the signature weapon of Amy Rose, a major character and Sonic's "girlfriend" from this series who debut in SONIC THE HEDGEHOG CD.
 * Hatsune Miku -Project DIVA- extend - Miku can dress in a Sonic-themed module to celebrate SEGA's mascot's 20th anniversary. She also sing a cover of Live and Learn (theme of SONIC ADVENTURE 2 and recurring song in the series) on the pre-order album to further celebrate his anniversary. An artwork of her in the costume was also released, with a Sonic Channel-esque art-style, and was even drawn to have green irises, which is Sonic's eye color.
 * SONIC COLORS - Whenever Sonic uses the Cyan Lazer Color Power, a trail of tiny, cyan-colored blocks form that resemble the blocks used in the Project DIVA series logo and whenever Hachune Miku appears in the game's cutscenes. The same goes for all other appearances of the Cyan Lazer CP. Additionally, the Cyan Wisp could be a reference to Miku's iconic turquoise hair, as cyan is the founding color of turquoise, and Miku's hair occasionally becomes cyan like the Cyan Wisp in the series due to lighting.
 * SONIC GENERATIONS - Miku's Sonic-themed module and cover of Live and Learn were also done entirely to promote Sonic's 20th anniversary game.
 * Other - While not yet featured in any of the games in both series, Miku sang a Trance remix of the music of Green Hill Zone, the very first and most recurring Zone of the series. It is titled "Green Hill Zone (Crystiara Remix)."

Space Channel 5

 *  Hatsune Miku -Project DIVA- - Miku can dress as Ulala with the Space Channel 5 module, even gaining Ulala's pink hair and blue irises. She also sings Mexican Flyer (the series theme), which is one of the songs featured in this game, complete with the tutorial instructor from the series. In addition, Miku gets her own Space Channel costume called from the Space Channel 39 module, as a tribute to the Space Channel 5 series.

YAkuzA

 * YAkuzA 5 - Miku snow sculptures can be seen around town and you can win Miku toys from UFO catchers (like claw-arm games). When playing as the character Sawamura Haruka, you have the option to wear a Miku costume. Instead of getting into street fights, Haruka has dance "battles" that play like a rhythm game

7TH DRAGON

 * 7TH DRAGON 2020 - The opening song written, composed, and arranged by sasakure.UK, is sung by Miku. The song is called "SeventH-HeaveN". Miku herself appears in a non-playable role as a songstress with the added moniker "Type 2021". In this game, she is almost attacked by a dragon, but is saved by the heroes. After being saved, she thanks the heroes and leaves. Afterwards, she can be found in a music studio. If the heroes talks to her here, they'll unlock the Diva BGM Mode, which will allow all the game's Background music (BGM) to be sung by Miku. Miku's art style is re-drawn to match the game's character art-style.
 * 7TH DRAGON 2020-II - Miku reappears with the exact same role as in the previous game: singing the opening song (again written by sasakure.UK) titled "HeavenZ-ArmZ", a songstress who is saved from a dragon by the heroes, and unlocking Diva BGM Mode to have Miku sing all the game's BGM along with songs written by 10 different producers: kiichi, Keeno, Clean Tears, koyori/Denpol-P, SHIKI, take, nak-ami, millstones, Lemm and Wonderlandica. The only difference with Miku here is that she now wears a different outfit, though her art-style is still the same as in the previous game.

OutRun

 * Out Run - In Hatsune Miku -Project DIVA- Arcade and Miku Flick, Miku sings a cover of Magical Sound Shower that features new lyrics. This song is also featured on the SEGA album titled "GETREADY".
 * TURBO OUTRUN - In an album by SEGA titled "GETREADY", Miku sings a cover of Rush A Difficulty.

AFTER BURNER

 * Hatsune Miku -Project DIVA- Arcade - In the album GETREADY by SEGA, Sakine Meiko sings a cover of AFTER BURNER, which appears in this game.
 * AFTER BURNER II - The logo of this game appears in the PV of AFTER BURNER.

Puyo Puyo

 * Hatsune Miku Project mirai 2 - This game features a -Project DIVA- themed minigame of Puyo Puyo.

QUARTET

 * Hatsune Miku -Project DIVA- Arcade / Miku Flick/02 - In Hatsune Miku -Project DIVA- Arcade and Miku Flick/02 (from 1.1.2 onwards), Miku sings a remixed cover of "Quartet Theme" (titled as 多重未来のカルテット -Quartet Theme- in the game) produced by Funky K.H, Kusemono ,SWANTONE and G@POPO.

maimai GreeN PLUS

 * maimai GreeN PLUS - Several songs by the series cast (mainly Miku) are performed in this game with their original singers and most of the songs featured in this game from the series.
 * Hatsune Miku -Project DIVA- Arcade/Hatsune Miku -Project DIVA- Arcade Future Tone - The game has some similarity to these games.