public void handler() {
            ROM_REGION(0x10000, REGION_CPU1);/* 64k for code */
            ROM_LOAD("superg.u", 0x0000, 0x0800, 0xe8f3aa67);
            ROM_LOAD("superg.v", 0x0800, 0x0800, 0xf58283e3);
            ROM_LOAD("cp3", 0x1000, 0x0800, 0x4c7031c0);
            ROM_LOAD("cp4", 0x1800, 0x0800, 0x097d92a2);
            ROM_LOAD("cp5", 0x2000, 0x0800, 0x5341d75a);

            ROM_REGION(0x1000, REGION_GFX1 | REGIONFLAG_DISPOSE);
            ROM_LOAD("cp7e", 0x0000, 0x0800, 0xd0ba22c9);
            /* logo was removed */
            ROM_LOAD("cp6e", 0x0800, 0x0800, 0x977e37cf);

            ROM_REGION(0x0020, REGION_PROMS);
            ROM_LOAD("galaxian.clr", 0x0000, 0x0020, 0xc3ac9467);
            ROM_END();
        }