public void handler() {
            ROM_REGION(0x18000, REGION_CPU1);/* 64k for code + 32k for banked ROM */

            ROM_LOAD("lr4-a-4e", 0x00000, 0x4000, 0x5383e9bf);
            ROM_LOAD("lr4-a-4d.c", 0x04000, 0x4000, 0x298afa36);
            ROM_LOAD("lr4-v-4k", 0x10000, 0x8000, 0x8b248abd);/* banked at 8000-bfff */

            ROM_REGION(0x10000, REGION_CPU2);/* 64k for the audio CPU (6803) */

            ROM_LOAD("lr4-a-3d", 0x8000, 0x4000, 0x86c6d445);
            ROM_LOAD("lr4-a-3f", 0xc000, 0x4000, 0x097c6c0a);

            ROM_REGION(0xc000, REGION_GFX1 | REGIONFLAG_DISPOSE);
            ROM_LOAD("lr4-v-2b", 0x00000, 0x4000, 0x4118e60a);/* characters */

            ROM_LOAD("lr4-v-2d", 0x04000, 0x4000, 0x542bb5b5);
            ROM_LOAD("lr4-v-2c", 0x08000, 0x4000, 0xc765266c);

            ROM_REGION(0x18000, REGION_GFX2 | REGIONFLAG_DISPOSE);
            ROM_LOAD("lr4-b-4k", 0x00000, 0x4000, 0xe7fe620c);/* sprites */

            ROM_LOAD("lr4-b-4f", 0x04000, 0x4000, 0x6f0403db);
            ROM_LOAD("lr4-b-3n", 0x08000, 0x4000, 0xad1fba1b);
            ROM_LOAD("lr4-b-4n", 0x0c000, 0x4000, 0x0e568fab);
            ROM_LOAD("lr4-b-4c", 0x10000, 0x4000, 0x82c53669);
            ROM_LOAD("lr4-b-4e", 0x14000, 0x4000, 0x767a1352);

            ROM_REGION(0x0820, REGION_PROMS);
            ROM_LOAD("lr4-v-1m", 0x0000, 0x0100, 0xfe51bf1d);/* character palette red component */

            ROM_LOAD("lr4-b-1m", 0x0100, 0x0100, 0x5d8d17d0);/* sprite palette red component */

            ROM_LOAD("lr4-v-1n", 0x0200, 0x0100, 0xda0658e5);/* character palette green component */

            ROM_LOAD("lr4-b-1n", 0x0300, 0x0100, 0xda1129d2);/* sprite palette green component */

            ROM_LOAD("lr4-v-1p", 0x0400, 0x0100, 0x0df23ebe);/* character palette blue component */

            ROM_LOAD("lr4-b-1l", 0x0500, 0x0100, 0x0d89b692);/* sprite palette blue component */

            ROM_LOAD("lr4-b-5p", 0x0600, 0x0020, 0xe01f69e2);/* sprite height, one entry per 32 */
            /* sprites. Used at run time! */

            ROM_LOAD("lr4-v-4h", 0x0620, 0x0100, 0xdf674be9);/* unknown */

            ROM_LOAD("lr4-b-6f", 0x0720, 0x0100, 0x34d88d3c);/* video timing? - common to the other games */

            ROM_END();
        }