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Video Game / Chunithm

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CHUNITHM (チュウニズム) is an Rhythm Game for arcades developed and published by SEGA, originally released in 2015. It is one of SEGA's three Performai games, alongside maimai and Ongeki.

The game uses the traditional "falling notes" style of gameplay. Notes scroll down the gameplay lanes and for each note, the player must hit the corresponding part of the "Ground Slider" controller. Tap notes require the note to simply be tapped, Hold notes require holding down the necessary part of the slider until the note ends, Slide notes are similar to Hold notes but the player must drag horizontally along the slider, and Flick notes require the player to slide across the part of the slider corresponding to the note.

However, there's a unique twist to this formula: In addition to all of these, there are also Air notes, where the player must physically lift their hands off of the slider and wave them through a sensor above the slider; some Air notes simply require the player to tap the note and then lift their hand off into the sensor range, others require the player to keep their hand in the air afterwards to hit the mid-air "Air-Action" notes, and some other Air notes have the player move their hands down through the sensor to hit notes on the slider.


Notes need not be fixed-width like in many other rhythm games; each note can be as little as 1/16th as wide as the playing field, or as wide as the entire playfield, so depending on the note you have some leeway in how precise you have to be to hit it.

Unlike its sibling game maimai, which has been released in other parts of Asia, CHUNITHM is strictly Japan-only with an overseas release coming this Summer 2020. It is currently one of the most popular rhythm games in Japan, despite Sega only having about half as much time in the arcade rhythm game scene as Konami (BEMANI).

Compare Deemo, which shares a few common interface elements such as the variable-width notes, Arcaea which borrows the "air notes" concept, Nostalgia (BEMANI) which some have described as "Chunithm except with piano music", BanG Dream! Girls Band Party! which has been called "Chunithm but with idol bands" by some players, and Dance Rush which has been described as Chunithm EXCEPT WITH YOUR FEET!


Games in the series:note 

  • CHUNITHM (2015)
    • CHUNITHM PLUS (2016)
  • CHUNITHM AIR (2016)
    • CHUNITHM AIR PLUS (2017)
  • CHUNITHM STAR (2017)
    • CHUNITHM SUPER STAR (SUMMER 2020) — upcoming overseas version
  • CHUNITHM CRYSTAL (2019) — current version

The CHUNITHM series provides examples of the following:

  • All or Nothing: ExTap, Slides, and Flick notes can only be rated Justice Critical or Miss, skipping Attack and Justice entirely. Downplayed, in that this is because the Justice Critical window overrides the Attack and Justice windows; so long as you hit them at all, you'll get a JC.
  • Bullet Hell: Some World's End charts have the player holding one long note throughout the entire chart and trying to dodge damage notes on the track.
  • Call a Hit Point a "Smeerp": The highest three judge ranks: Justice Critical (perfect), Justice (great), and Attack (good). Only the Miss judgement is Exactly What It Says on the Tin.
  • Color-Coded for Your Convenience: Tap notes are pink, ExTap notes are glowing yellow, Hold notes have yellow tips and yellow-and-purple fills, Slide notes have blue tips with purple-and-cyan fills, Flick notes are blue, upward Air notes have green arrows, Air-Action notes are hot pink, and downward Air notes have pink arrows. During certain WORLD'S END charts, Damage notes are purple.
  • Flawless Victory: Clearing a chart with only Justice or Justice Critical judgements results in a congratulatory "ALL JUSTICE!" message. The usual "Full Combo" is here, as well, if you get at least one Attack.
  • Gimmick Level: The WORLD'S END charts. In place of a difficulty number, each of these charts has a kanji corresponding to the type of gimmick it uses.Examples include... 
  • Harder Than Hard: The difficulties go Basic, Advanced, Expert, and Master.
  • Lighter and Softer: Whereas the original game and its PLUS version primarily use black and gold as its dominant colors, CHUNITHM AIR and its respective PLUS version use a sky theme with lots of turquoise and purple.
  • Portmanteau: The title is one on the words "chuunibyou" and "rhythm", or "tune" and "rhythm". This was confirmed in an interview by Japanese game publication 4Gamer
  • Rank Inflation:
    • The ranks go D, C, B, BB, BBB, A, AA, AAA, S, SS, SSS.
    • Scores seem to be out of 1 million points, however, it is possible to go slightly over a million, and in fact, you need a little more than 1 million (1,007,500) for an SSS. This is because while a Justice gives 100% of the "maximum" note score, a Justice Critical gives you 101%.note 

      Just to emphasize the inflation, the Justice Critical judgement isn't even particularly hard to get by arcade rhythm game standards, as the timing window for it is ±33 milliseconds, the same as "perfect" judgements in many other rhythm games.To compare  A 95% score in most other rhythm games means the player did well, while here, 950,000 is actually considered only an average score.
  • Required Spinoff Crossover: Several songs from maimai and O.N.G.E.K.I. make their appearance here, and in return, songs from CHUNITHM cross over there.
  • Scoring Points: Scoring is based strictly on accuracy. Getting a Justice gets you 100% of the note score, getting a Justice Critical gets you 101%, Attack gets you 50%, and a Miss gets you nothing. Hold and Slide notes are each counted as multiple notes. The score is based around 1,000,000 being a 100% score, with 1,010,000 as the actual maximum score obtainable.
  • Some Dexterity Required: Some patterns involving Hold or Slide notes are best done by crossing your arms.
    • Subverted: you don't have cross your arms, you can bring your hands together and then move them apart and it'll still count.


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