public void handler() {
            ROM_REGION(0x020000, REGION_CPU1);/* 68000 code */
            ROM_LOAD_EVEN("12591b.bin", 0x000000, 0x10000, 0x248b3e1b);
            ROM_LOAD_ODD("12590b.bin", 0x000000, 0x10000, 0x75256e3d);

            ROM_REGION(0x30000, REGION_GFX1 | REGIONFLAG_DISPOSE);/* tiles */
            ROM_LOAD("12595.bin", 0x00000, 0x10000, 0x5b18d60b);
            ROM_LOAD("12594.bin", 0x10000, 0x10000, 0x8bfc4815);
            ROM_LOAD("12593.bin", 0x20000, 0x10000, 0xcc0582d8);

            ROM_REGION(0x020000 * 2, REGION_GFX2);/* sprites */
            ROM_LOAD("12596.bin", 0x000000, 0x010000, 0x4a4041f3);
            ROM_LOAD("12597.bin", 0x010000, 0x010000, 0x6961e676);

            ROM_REGION(0x10000, REGION_CPU2);/* sound CPU */
            ROM_LOAD("12592.bin", 0x0000, 0x8000, 0x9a8c11bb);
            ROM_END();
        }