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 Japanese entertainment rating organization based in Tokyo that rates video game content in console games with levels of rating that informs the customer of the nature of the product and for what age group it is suitable.