public void handler() {
            ROM_REGION(0x10000, REGION_CPU1);/* 64k for cpuA code */

            ROM_LOAD("4", 0x0000, 0x10000, 0x4de39d01);

            ROM_REGION(0x10000, REGION_CPU2);/* 64k for cpuB code */

            ROM_LOAD("5", 0x00000, 0x10000, 0x76158e94);

            ROM_REGION(0x10000, REGION_CPU3);/* 64k for sound code */

            ROM_LOAD("3", 0x00000, 0x10000, 0xc79134a8);

            ROM_REGION(0x1400, REGION_PROMS);
            ROM_LOAD("mb7122e.1k", 0x0000, 0x0400, 0x1e8fc4c3);/* red */

            ROM_LOAD("mb7122e.2l", 0x0400, 0x0400, 0x23ce9707);/* green */

            ROM_LOAD("mb7122e.1l", 0x0800, 0x0400, 0x26caf985);/* blue */

            ROM_LOAD("btj_h.prm", 0x0c00, 0x0400, 0xc20b197b);/* ? */

            ROM_LOAD("btj_v.prm", 0x1000, 0x0400, 0x5d0c617f);/* ? */

            ROM_REGION(0x8000, REGION_GFX1 | REGIONFLAG_DISPOSE);/* characters */

            ROM_LOAD("6", 0x0000, 0x8000, 0xa0e6710c);

            ROM_REGION(0x40000, REGION_GFX2 | REGIONFLAG_DISPOSE);/* tiles */

            ROM_LOAD("ww11.bin", 0x00000, 0x10000, 0x603ddcb5);
            ROM_LOAD("ww14.bin", 0x10000, 0x10000, 0x04c784be);
            ROM_LOAD("ww13.bin", 0x20000, 0x10000, 0x83a7ef62);
            ROM_LOAD("ww12.bin", 0x30000, 0x10000, 0x388093ff);

            ROM_REGION(0x40000, REGION_GFX3 | REGIONFLAG_DISPOSE);/* 16x16 sprites */

            ROM_LOAD("ww7.bin", 0x30000, 0x08000, 0x53c4b24e);
            ROM_LOAD("ww8.bin", 0x20000, 0x08000, 0x0ec15086);
            ROM_LOAD("ww9.bin", 0x10000, 0x08000, 0xd9d35911);
            ROM_LOAD("ww10.bin", 0x00000, 0x08000, 0xf68a2d51);

            ROM_REGION(0x80000, REGION_GFX4 | REGIONFLAG_DISPOSE);/* 32x32 sprites */

            ROM_LOAD("ww15.bin", 0x40000, 0x10000, 0xd55ce063);
            ROM_LOAD("ww16.bin", 0x50000, 0x10000, 0xa2d19ce5);
            ROM_LOAD("ww17.bin", 0x60000, 0x10000, 0xa9a6b128);
            ROM_LOAD("ww18.bin", 0x70000, 0x10000, 0xc712d24c);
            ROM_LOAD("ww19.bin", 0x20000, 0x10000, 0xc39ac1a7);
            ROM_LOAD("ww20.bin", 0x30000, 0x10000, 0x8504170f);
            ROM_LOAD("ww21.bin", 0x00000, 0x10000, 0xbe974fbe);
            ROM_LOAD("ww22.bin", 0x10000, 0x10000, 0x9914972a);

            ROM_REGION(0x20000, REGION_SOUND1);/* ADPCM samples */

            ROM_LOAD("bt_p4.rom", 0x00000, 0x10000, 0x4bc83229);
            ROM_LOAD("bt_p5.rom", 0x10000, 0x10000, 0x817bd62c);
            ROM_END();
        }