J2ME (Java 2 Micro Edition) is a new technology developed in recent years due to the rapid development of various devices, especially mobile communication devices. It aims at electronic consumer products and embedded devices, and provides a revolutionary solution for the intelligentization and diversification of devices with its natural Java characteristics of "write once and run everywhere", which speeds up the development efficiency.

With the development of wireless communication, mobile phone is the most popular terminal equipment that can carry Java. Java application shows an influence that cannot be ignored in the field of mobile phone value-added services, communication and entertainment, and also plays an important role in enriching people's life content and prompting information. This paper focuses on the application of J2ME technology in the field of mobile entertainment, develops a game program based on MIDP2.0-escape from the city, and introduces the structure and function realization of the game. It aims to complete a mobile phone game by imitating common forms to change the interface and operation.

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