The Computer Entertainment Rating Organization (特定非営利活動法人コンピュータエンターテインメントレーティング機構 Tokutei Hieiri Katsudō Hōjin Konpyūta Entāteinmento Rētingu Kikō) (CERO) is the organization that rates video games and Computer software in Japan with levels of rating that informs the customer of the nature of the product and for what age group it is suitable. It was established on July 2002 as a branch of Computer Entertainment Supplier's Association, and became an officially recognized non-profit organization on 2003.
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On March 1, 2006, CERO implemented the latest revision of its ratings system. The symbols that CERO uses are stylized depictions of letters, meant to convey at a glance, a game's suitability for minors:
Cultural differences between ratings are very common, and games can receive different ratings in different countries. For example, the game Shin Megami Tensei: Persona 3 was rated B by the CERO, which would technically give it a T (12+) in Europe and North America, but it was rated M (17+ - CERO D rating) by the ESRB, a difference of two grades.
Some ratings, however, are consistent, such as No More Heroes which is rated M by the ESRB, D by the CERO and 16 by the PEGI. Also, some games may be partially censored to eliminate some of the more mature themes in the games' content, such as the aforementioned No More Heroes.
Ratings are often printed on the packaging of video games. The Z classification is the only rating which is restricted.[1]
In April 2004, CERO defined the following "content descriptor icons." These icons are displayed on the back of all packages except on those rated "A."
These ratings were used until March 2006.
The primary difference between the two rating systems was the inclusion of the "17 and older" rating, due to the large gap between the "15 and up" and "18 and up" ratings.
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Computer Entertainment Rating Organization (CERO) is the organization that rates videogames and computer software in Japan with levels of rating that informs the customer of the nature of the product and for what age group it is suitable. It was established on July 2002 as a branch of Computer Entertainment Supplier's Association, using Entertainment Software Rating Board as a model and became an officially recognized non-profit organization in 2003.
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On March 1, 2006, CERO made a new, revised version of the ratings system. The symbols the CERO uses are stylized depictions of letters, meant to convey at a glance a game's suitability:
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A — All ages: (Equivalent to the ESRB's EARLY CHILDHOOD, EVERYONE, and EVERYONE 10+ and PEGI's 3+ and 7+). It is often likened to the Eirin's "G" Rating. |
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B — Ages 12 and up: (Equivalent to the ESRB's TEEN and PEGI's 12+). It is often likened to the Eirin's "PG-12" rating. |
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C — Ages 15 and up: (Equivalent to the PEGI's 16+). It is often likened to the Eirin's "R-15" rating. |
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D — Ages 17 and up: (Equivalent to the ESRB's MATURE) |
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Z — Ages 18 and up only: (Equivalent to the ESRB's ADULTS ONLY and PEGI's 18+). It is often likened to the Eirin's "R-18" rating. |
One of the symbols above is displayed on the front of the package. This mark is the notation of the age suitability based on the contents. The Z rating may not appear to be very different from the D rating, the only difference is that the Z rating is regulated under the government.
In April 2004, CERO defined the following "contents descriptor icons". These icons are displayed on the back of all packages except those rated as "All ages".
The symbols the CERO used were stylized depictions of numbers, meant to convey at a glance a game's suitability:
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All ages: (Equivalent to the ESRB's EVERYONE and PEGI's 3+ and 7+). This rating was replaced by "A". |
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Ages 12 and up: (Equivalent to the ESRB's TEEN and PEGI's 12+). This rating was replaced by "B". |
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Ages 15 and up: (Equivalent to the ESRB's MATURE and PEGI's 16+). This rating was replaced "C". |
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Ages 18 and up: (Equivalent to the ESRB's MATURE or ADULTS ONLY and PEGI's 18+). This rating was replaced by the two ratings "D" and "Z", setting the age levels where "D" is for ages 17 and over, and "Z" is for ages 18 and over only (Adults ONLY). |
The Computer Entertainment Rating Organization system (CERO for short) is the Japanese equivalent of the Entertainment Software Rating Board. Dispite its name, it mostly only governs over console game ratings. The majority of Japanese PC games are governed by the EOCS.
An icon-based content descriptor system will take effect in June for all games except those rated "All Ages". It's similar to the Pan European Game Information system's icons.
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The ratings A~D are advisory, while Z is strictly enforced. Many games rated as "18" under the old system have been re-rated as D.





The old ratings system was retired on March 1st, 2006, in favor of the new ratings system.
It was divided into "All Ages," "12 and Up," "15 and Up," and "18 and Up.". All ratings are advisory.
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Titles rated All Ages (CERO: Free) are suitable for everyone, regardless of age.
Titles rated 12 and Up (CERO: 12) have content that may be suitable for ages 12 and older.
Titles rated 15 and Up (CERO: 15) have content that may be suitable for ages 15 and older.
Titles rated 18 and Up (CERO: 18) have content that may be suitable for persons ages 18 and older.
In April 2004, CERO defined the following "contents descriptor icons". These icons are displayed on the back of all packages except those rated as "All ages".
| Game Rating |
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| Americas |
| ESRB (United States/Canada) |
| Europe |
| PEGI (most of Europe) • BBFC (UK) • ELSPA (UK, retired) • USK (Germany) • VET (Finland) |
| Asia |
| CERO (Japan, console) • EOCS (Japan, PC) |
| Australia/New Zealand |
| OFLC (Australia) • OFLC (New Zealand) |
CERO
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The Computer Entertainment Rating Organization (特定非営利活動法人 コンピュータエンターテインメントレーティング機構 Tokutei Hieiri Katsudō Hōjin Konpyūta Entāteinmento Rētingu Kikō?) (CERO) is a group that rates video games and computer software in Japan.
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