The Computer Entertainment Rating Organization (CERO) is a Japanese organization responsible for rating video games based on their content. Established in 2002, CERO evaluates games to ensure they are appropriate for different age groups, providing guidance to consumers and parents. The ratings range from "A" for all ages to "Z" for adults only. CERO's rating system helps players make informed choices about the games they purchase or play. By assessing factors like violence, language, and sexual content, CERO aims to promote responsible gaming and protect younger audiences from inappropriate material.