CoffeeCat is a Java (J2ME) game emulator designed to run classic games smoothly on modern iOS devices. It supports the native iOS keyboard, save systems, and audio playback, and provides multi-core compatibility to ensure a wider range of games can run properly. Main features include importing your JAR files to start playing quickly, multiple display modes such as standard, half-screen, and full-screen, a visual virtual keyboard with highly customizable layouts (global or per-game), save management with view, import, and export capabilities, multi-core and library support to improve game compatibility, and iCloud sync (PRO) for synchronizing game libraries and save data across multiple devices. CoffeeCat is committed to delivering a more stable, intuitive, and native-like gaming experience, allowing you to relive the enjoyment of classic J2ME games. Important Notice: This application does not include any games. Users must import JAR files that they legally own or have the right to use. Special Thanks: Thanks to Zixing for the support during the development process.