When developing games or graphics rich applications in J2ME we need to keep the memory usage as low as possible. Try to use small texture images repeatedly as backgrounds instead of full images. Symmetrical objects can be cut into half thru the line of symmetry and when required mirror the same image and complete the other side programmatically. Although TiledLayer in J2ME does not provide option for mirroring, it gives rotation. Mirroring function can be easily written by bitwise manipulation. These techniques will not only reduce the memory usage, but the JAR size too.