2008 video game
 (DDR X2) is a music video game, and a part of the "Dance Dance Revolution" series. The arcade version of "DDR X2" was revealed by Konami on November 20, 2009. The sequel to "Dance Dance Revolution X", X2 began public beta testing on November 25, 2009. The game was released in Japan and Asia on July 7, 2010, North America on December 31, 2010, and Europe on May 13, 2011. It was the last arcade installment of "Dance Dance Revolution" with international releases until "Dance Dance Revolution A".
Development.
The first public location test for "Dance Dance Revolution X2" was announced by Konami on November 20, 2009, to be held from November 25 to December 3, 2009, in Akihabara, Tokyo. The location test revealed new features such as a redesigned song selection interface, new adjustable versions of the Sudden and Hidden modifiers, and the ability to adjust these settings and the speed of the arrows in-game using the control buttons on the cabinet. The location test version did not contain an Extra Stage song, but "POSSESSION" was accessible on the build if certain conditions were met.
Features.
A total of 17 characters are available in "X2", featuring new costumes. Two characters, Rena and Rinon, make their first arcade appearance. The other 15 characters are from "DDR X". Rinon can appear in one of seven colors by selecting the Replicant-D Action folder. In "X2" and subsequent releases, the character selection screen and accessories are only accessible on the e-Amusement website. The game defaults to selecting a random character when choosing a song.
Extra Stage.
Extra Stage.
The Extra Stage system in this game has been changed. The player must obtain performance grade of AA or AAA from the First Stage to a Final Stage to reach Extra Stage. There are no longer songs exclusive to Final Stage that are required to access Extra Stage as with previous versions. The special song available in Extra Stage is KIMONO PRINCESS, but the difficulty ratings of the chart is based on the sum of difficulty ratings and the number of stages on the credit. The list is as follows.
The Extra Stage uses Battery Dance Meter; its quantity of lives is 4. The players can choose options for Extra Stage.
Encore Extra Stage.
To access Encore Extra Stage, the player needs to get AA or better on KIMONO PRINCESS on Expert during Extra Stage. Unlike previous version where the players may choose any song, Encore Extra Stages have been reverted to the style in DDR MAX, where only a specific song can be played. The song is (by default) Roppongi EVOLVED on Expert. The version of the song is chosen randomly. Players are still able to set options before challenging Encore Extra Stage.
Replicant D-Action.
For Replicant D-Action, each song has different requirements to access. 
Scoring AA or better on each song will net a medal.
When the player subsequently earns all six, the player immediately will access the special Encore Extra Stage, Valkyrie dimension on Expert. The player is forced to play the song immediately, which means they cannot change options or take a break.
Release.
"Dance Dance Revolution X2" was released on December 31, 2010 in the United States. Internationally, "Dance Dance Revolution X2" was imported in Canada on December 5, 2011 at the Funhaven amusement centre in Ottawa, Ontario. As of August 2019, this is the sole venue in Canada to feature this game, after a competitor withdrew an upgraded machine.
New cabinets, and "Dance Dance Revolution X" upgrades, feature a 37" monitor at 720p. Legacy cabinets, initially running "SuperNova 2" or an older release, feature a 29" monitor at 480p.
Music.
There are 83 new songs featured in X2 (81 new songs in the North American and European releases). 17 out of 19 licensed songs from "Dance Dance Revolution SuperNova" and 10 out of 13 from "Dance Dance Revolution SuperNova 2" have been removed due to their licenses expiring. The licensed material from "Dance Dance Revolution X" remains, including tracks from the Dancemania compilation series, as well as A Different Drum records. Four classic licensed songs from earlier DDR mixes have also returned in remastered form, along with a special remixed license track. The first location test build contained 14 new songs, plus one secret song, "POSSESSION", which had special conditions required in order to be unlocked. Three additional songs were added on an updated build installed several days after the testing began.
In the 2010 Japanese Arcade Operators Union expo (AOU2010), Konami showed a newer build of the game. This newer version showcased even more new songs, including additional material from other BEMANI music games.
The final release of the build revealed many new unlocks, special remixes by Konami artists, and song revivals. The licenses include selections by well known Japanese and Western artists. This the very first DDR arcade release to include licenses from the "Cyber Trance" series of albums. It is also the first time that Super Eurobeat tracks have been featured in a DDR game since "Dancing Stage featuring Disney's Rave". Other songs have been ported over from the latest PlayStation 2, Wii, and Xbox 360 DDR releases. There are a total of 444 songs in this game (442 songs in the North American and European releases).
A total of four songs, all which debuted in "Dance Dance Revolution Hottest Party 3" for the Wii, are exclusive to "Dance Dance Revolution X2" in arcades:
In addition, a total of 16 songs are exclusive to "Dance Dance Revolution X" and "X2" in arcades.
One of the new features included in the main game mode is a special "Extra Stage" system. Known as "Replicant D-Action", this mode allows players to choose from a set of 6 difficult songs, 3 level 14's (slower songs) and 3 level 17's (faster + tempo change songs). When a player gets rank AA or more one of these songs (any difficulty), they receive a medal for that particular track. When players subsequently earn all 6 medals, they can access the Encore Extra Stage, "Valkyrie dimension" (Expert). "Valkyrie dimension" is known as the first song in the series that is harder than the "Extra Stage" despite the latter having one life, let alone the most difficult song in the entire series.
On March 23, 2011, Konami introduced a special promotion called APPEND Festival. This allowed players to unlock 2 special songs for 5 BEMANI games, including "DDR X2" and the recently released upgrade version of jubeat knit, "jubeat knit APPEND". However, these songs are not available in the North American and European versions of the game due to the lack of e-Amusement in those regions.
The PlayStation 2 version of "Dance Dance Revolution X2" was released in 2009, prior to the arcade version. It includes 60 songs, including 19 which made their arcade debut in "X2". Another 25 songs originate from older releases, but are also available in "X2" for the arcade, for a total of 44 common songs in both versions of "X2". The remaining 16 songs are console exclusives.
Courses.
In Course Mode, players go through anywhere from four to seven songs with no breaks. Players may set options before a course is played, but not midway between songs. There are two kinds of courses: ordinary courses and drill courses. Ordinary courses offer two difficulties: Normal and Difficult. The dance gauge used is different between ordinary courses; those with five songs use the normal dance gauge, while those with six or seven songs use the battery dance gauge, where scoring a "Good", "Miss", or "N.G." judgment step will drain a non-renewable bar. In Normal difficulty, players start with eight bars, while Difficult only gives them four bars. As for drill courses, all of them contain four songs, there is only one difficulty option, and the songs are different between Single and Double Style. In the drill course list, the colors yellow, fuchsia, green, and navy blue indicate that the song is played on Basic, Difficult, Expert, and Challenge, respectively.
In popular culture.
In the 2012 Disney animated film "Wreck-It Ralph", an arcade cabinet of the game can be seen in the opening of the wide-view of Litwak's Arcade during Ralph's speech.
References.
 ;templatestyles src="Reflist/styles.css" / ;