This course is dedicated to cultivating senior talents based on JAVA ME platform development, mastering JAVA, JAVA ME, JAVA WEB and other technologies, and engaging in mobile game development and mobile embedded software development based on JAVA ME platform. The main employment companies are companies engaged in mobile game development, such as Shanda Digital Red and Datouwang. The company types are mobile game development companies or mobile client software development companies that master Java language overview, classes, object and class inheritance, abstract classes and interfaces, array and collection development, file access and Swing UI design. The realization of map editor MIDP 1.0 development process, UI design package, RMS data warehouse, MIDP2.0 development, game animation creation, and the basic process of developing games. The realization and optimization of game map, background scrolling technology, the in-depth use of cropping area, the realization of character animation, the collision detection technology between characters and scenes, and the reading of map files. Write an example of ACT game, realize the map, characters and props in the game, realize the switch of levels and realize the collision detection in the game.