Our game, titled "GTA: Mini City," is a simplified version of the original GTA game, adapted for mobile devices. The game features a 2D open-world environment, where players can explore and interact with objects. The game is designed to be easy to play on a touch screen, with intuitive controls and simple gameplay mechanics.

The game was developed using Java ME (Java Platform, Micro Edition), which provides a set of APIs and tools for developing mobile applications. We used the Java ME SDK (Software Development Kit) to create and test the game on a simulated environment.

In this paper, we presented a study on designing and developing a Java-based GTA game for 240x320 touch screen devices. We discussed the challenges and opportunities of developing a mobile game and demonstrated the feasibility of creating a GTA-like game on a low-resolution touch screen device. The game, "GTA: Mini City," offers an engaging gameplay experience, with intuitive controls and simple gameplay mechanics. The development process highlights the importance of optimizing game engines, graphics, and sound for mobile devices.

Our game, "GTA: Mini City," was successfully developed and tested on a 240x320 touch screen device. The game runs smoothly, with minimal lag and acceptable graphics quality. The gameplay experience is engaging, with intuitive controls and simple gameplay mechanics.