(abbreviated DDR; also called DanRevo, Dance Revo, or DanceRevo; stylized as DanceDanceRevolution since SuperNOVA) is a music video game series produced by Konami. Introduced in Japan in 1998 as part of the Bemani series, and released in North America and Europe in 1999, Dance Dance Revolution is the pioneering series of the rhythm and dance genre in video games. Players stand on a "dance platform" or stage and hit colored arrows laid out in a cross with their feet to musical and visual cues. Players are judged by how well they time their dance to the patterns presented to them and are allowed to choose more music to play to if they receive a passing score.

Dance Dance Revolution has been met with critical acclaim for its originality and stamina in the video game market, as well as popularizing the use of videogames as a medium for fitness and exercise. There have been dozens of arcade-based releases across several countries and hundreds of home video game console releases, promoting a music library of original songs produced by Konami's in-house artists and an eclectic set of licensed music from many different genres. The game is also known for its passionate fanbase, as well as its growing competitive tournament scene. The DDR series has also inspired similar games such as Pump it Up by Andamiro and In the Groove by Roxor Games.

The series' current arcade version is Dance Dance Revolution World, released on June 12, 2024.

Gameplay

The core game involves the player stepping their feet to correspond with the arrows that appear on the screen and the beat of the song playing. During normal gameplay, arrows scroll upwards from the bottom of the screen and pass over a set of stationary arrows near the top (referred to as the "guide arrows" or "receptors", officially known as the Step Zone). When the scrolling arrows overlap the stationary ones, the player must step on the corresponding arrows on the dance platform. Upon doing so, they are given a judgement for their accuracy of every streaked note (From highest to lowest: Marvelous, Perfect, Great, Good, Almost, Miss).

Additional arrow types were added in later mixes. Freeze Arrows, introduced in MAX, are long green arrows that must be held down until they completely travel through the Step Zone. Each of these arrows awards an "O.K.!" if successfully pressed or an "N.G." when the arrow is released too quickly. An "N.G." decreases the life bar and, starting with X, also breaks any existing combo. X also introduced Shock Arrows, walls of arrows with lightning effects that must be avoided, which will award an "O.K.!" if successfully avoided or an "N.G." if any of the dancer's panels are stepped on. An "N.G." for shock arrows has the same consequences found with freeze arrows, but hitting a shock arrow additionally hides future steps for a short period.

Successfully hitting the arrows in time with the music fills the "Dance Gauge", or life bar, while failure to do so drains it. If the Dance Gauge is fully exhausted during gameplay, the player will fail the song, and the game will be over. Otherwise, the player is taken to the Results Screen, which rates the player's performance with a letter grade and a numerical score, among other statistics. The player may then be given a chance to play again, depending on the settings of the particular machine. The default limit is three songs, though operators can set the limit between one and five.

Aside from play style Single, Dance Dance Revolution provides two other play styles: Versus, where two players can play Single simultaneously, and Double, where one player uses all eight panels. Before the 2013 release of Dance Dance Revolution, some games offer additional modes, such as Course mode (players must play a set of songs back-to-back) and Battle mode (two players compete with a tug-of-war life bar by sending distracting modifiers to each other). Earlier versions also have Couple/Unison Mode, where two players must cooperate to play the song. Course Mode was reintroduced to the series starting with A20.

Difficulty Depending on the edition of the game, dance steps are broken into various levels of difficulty, often by color. The difficulty is separated into two to five categories, depending on the game:

Game Difficulty Beginner Basic Difficult Expert Challenge SuperNOVA series 1–4 1–9 2–10 4–10 6–10 X and newer 1–9 2–13 4–16 7–18 4–19 Dance Dance Revolution Extreme and older also used these difficulties, but with different names and level ranges from game to game. Some difficulties are absent in some games.

The first release of Dance Dance Revolution established two difficulties: Basic for Single and Double modes, and Another for Single mode only. Each chart is rated with a level from 1 to 7, and every release through 3rdMix Plus also attributed a title to each level number. The Internet Ranking Version added Another for Double mode, and a new higher difficulty of Maniac for Single mode only, along with several level 8 charts, titled Exorbitant. 2ndMix Club Version 2 introduced several level 9 charts, titled Catastrophic until 3rdMix Plus and Evolutionary in X3 vs. 2ndMix. The Maniac difficulty was renamed SSR and expanded to Double mode for new songs in 3rdMix, with the name reverting to Maniac in 3rdMix Plus. Beginning with 4thMix, all songs featured the Maniac difficulty in Single and Double mode. Also, Another was renamed to Trick. 4thMix Plus introduced new Maniac charts for 16 songs, while the original Maniac charts were labelled Maniac-S and Maniac-D in this game, with only the new charts remaining in 5thMix.

DDRMAX introduced the "Groove Radar", showing how difficult a particular sequence was in various categories, such as the maximum density of steps. This release removed the level numbers, and among the 42 songs, two ("Flash in the Night" and "Follow Me") have never received any level numbers due to being DDRMAX exclusives. Additionally, DDRMAX changed the difficulty names to Light, Standard, and Heavy. Beginning with DDRMAX2, level numbers were reintroduced, along with a level 10 for "MAX 300" and "MAXX Unlimited". Level 10 was titled Revolutionary in X3 vs. 2ndMix. DDRMAX2 also introduced the Challenge difficulty with "Kakumei" ("革命") on One More Extra Stage, and in Nonstop Challenge Mode songs. Extreme introduced the Beginner difficulty, which premiered in Dancing Stage EuroMix, as the game's easiest difficulty. It is only available in Single mode, except in the DDR Universe series for the Xbox 360, which offers Beginner difficulty in Single and Double modes. Extreme features a total of 37 songs with the Challenge difficulty. Exclusive to Extreme were "flashing 10s" that are harder than regular 10s.

SuperNOVA standardizes the naming of difficulty to the Beginner, Basic, Difficult, Expert, and Challenge respectively.

Due to the old system not going past level 10 and other outdated reasonings, X overhauls the numbering system, now extending the scale of 1–20. All songs from previous versions were re-rated on the new scale, roughly multiplying the old number to 1.4x (i.e. 9 now being 12 or 13). Even though the rating can go up to 20, no song has reached that level. The highest rated song on X is 18. X2 introduced the first 19: "Valkyrie dimension" Challenge. Although the new rating system is an improvement from the old system, it is common for each sequel to re-rate charts to reflect the proper difficulty, such as "POSSESSION" Double Challenge being re-rated from 18 to 19 on both DDR II (Wii) and X3 vs. 2ndMix.

Starting from A, the difficulty is now displayed during gameplay.

Groove Radar

The foot-rating system was completely removed for the 6th Mix, and replaced by the Groove Radar. The Groove Radar is a graphical representation of the difficulty of a song based in five different areas: Stream, Voltage, Air, Chaos, and Freeze.

Stream – Indicates the overall density of the steps of the song. A high number of steps is a factor too, but not necessary for a high stream measurement. Voltage – Indicates the peak density of the steps (the highest density of arrows that ever appear on the screen at once). Songs with a high BPM (300 or more) usually have a high voltage measurement, since it allows more steps to appear in increasingly halved beats (4th step in a 300 BPM song equals to 8th beat step in a 150 BPM song, and so on), though songs with lower BPM can have a high voltage, even if the halved beats usually cap at 32nd beat (64th beat steps exist in very few songs). Chaos – Indicates "off-beat" steps; those that do not occur in 4th or 8th beats. Air – Indicates the number of double steps (i.e. jumps) and shock arrows within the song. Freeze – Indicates the number of freeze arrows within the song

Each game usually has a song that maxes out a category within the radar. If a song in a following mix or update has a higher category measurement, then the groove radar is renewed so the new song can max out that category, while all previous songs are re-rated in respect to the new radar.

As of DDR 2014, the groove radar also employs a numerical measurement in addition to a graphical representation. Before the update, the radar did not disclose the number by default, though it could be shown by holding the SELECT button while heading to the song select screen.

The Groove Radar was not very popular among seasoned DDR veterans. The foot-rating system was restored to work with the Groove Radar in the North American home version of the game and the next arcade version, MAX2, and almost all future versions (except for versions based on the North American version of EXTREME, which only used foot ratings). All of the MAX songs on MAX2 received foot-ratings, excluding songs that were removed.

SuperNOVA 2 featured special edits of songs specifically meant to max out specific categories on the radar, culminating with "DEAD END ("GROOVE RADAR" Special)", maxing out all five categories. While not related, SuperNOVA 2 also featured a variation known as "My Groove Radar" as part of e-Amusement, which was also divided into five categories, though it was meant to measure the player's stats on songs rather than showing the song's difficulty.

This feature is now removed in DDR WORLD.

Extra Stage system The Extra Stage, originally introduced in 1stMIX and reintroduced in MAX, rewards a player for clearing three songs, either with a high enough grade on the final stage or by fulfilling specific play requirements. The player receives the opportunity to play a free extra song, which often defaults to a very difficult song with forced modifiers (such as 1.5x speed and Reverse) and LIFE4 since DDR X2, a life bar identical to the battery bar similar to Challenge mode with 1–4 lives depending on their score in the final stage in SuperNOVA 2 and X, or a non-regaining life bar before SuperNOVA 2. Beginning on SuperNOVA 2, players may be able to access the modifier menu (LIFE GAUGE is disabled) and the forced modifiers (save for battery bar or LIFE4) are no longer used. However, the Replicant-D Action event in X2 and since DDR 2014 did not allow players to select modifiers for its Encore Extra Stage.