This bios? 268-bios.bin", CRC(b4590283) And they are using the ms3 roms in the ms6boot +ROM_START( mslug3b6 ) /* This "Metal Slug 6" is a hack/bootleg of Metal Slug 3, the real Metal Slug 6 is on Atomiswave Hardware */ + ROM_REGION( 0x500000, REGION_CPU1, 0 ) + ROM_LOAD16_WORD_SWAP( "299-p1.bin", 0x000000, 0x200000, CRC(5f2fe228) SHA1(747775a2dfc0da87ad2ddd4f57ce5b2522f23fa5) ) + ROM_LOAD16_WORD_SWAP( "299-p2.bin", 0x100000, 0x400000, CRC(193fa835) SHA1(fb1f26db7998b0bb6b1c8b92500c1596ec5dfc71) ) + + NEO_SFIX_128K( "299-s1.bin", CRC(6f8b9635) SHA1(86b0c8c0ccac913c6192ed6a96c35d4e1a5e8061) ) + + NEO_BIOS_SOUND_512K( "256-m1.bin", CRC(eaeec116) SHA1(54419dbb21edc8c4b37eaac2e7ad9496d2de037a) ) + + ROM_REGION( 0x1000000, REGION_SOUND1, 0 ) + ROM_LOAD( "256-v1.bin", 0x000000, 0x400000, CRC(f2690241) SHA1(fd56babc1934d10e0d27c32f032f9edda7ca8ce9) ) + ROM_LOAD( "256-v2.bin", 0x400000, 0x400000, CRC(7e2a10bd) SHA1(0d587fb9f64cba0315ce2d8a03e2b8fe34936dff) ) + ROM_LOAD( "256-v3.bin", 0x800000, 0x400000, CRC(0eaec17c) SHA1(c3ed613cc6993edd6fc0d62a90bcd85de8e21915) ) + ROM_LOAD( "256-v4.bin", 0xc00000, 0x400000, CRC(9b4b22d4) SHA1(9764fbf8453e52f80aa97a46fb9cf5937ef15a31) ) + + NO_DELTAT_REGION + + ROM_REGION( 0x4000000, REGION_GFX3, 0 ) + /* Encrypted */ + ROM_LOAD16_BYTE( "256-c1.bin", 0x0000000, 0x800000, CRC(5a79c34e) SHA1(b8aa51fa50935cae62ab3d125b723ab888691e60) ) /* Plane 0,1 */ + ROM_LOAD16_BYTE( "256-c2.bin", 0x0000001, 0x800000, CRC(944c362c) SHA1(3843ab300f956280475469caee70135658f67089) ) /* Plane 2,3 */ + ROM_LOAD16_BYTE( "256-c3.bin", 0x1000000, 0x800000, CRC(6e69d36f) SHA1(94e8cf42e999114b4bd8b30e0aa2f365578c4c9a) ) /* Plane 0,1 */ + ROM_LOAD16_BYTE( "256-c4.bin", 0x1000001, 0x800000, CRC(b755b4eb) SHA1(804700a0966a48f130c434ede3f970792ea74fa5) ) /* Plane 2,3 */ + ROM_LOAD16_BYTE( "256-c5.bin", 0x2000000, 0x800000, CRC(7aacab47) SHA1(312c1c9846175fe1a3cad51d5ae230cf674fc93d) ) /* Plane 0,1 */ + ROM_LOAD16_BYTE( "256-c6.bin", 0x2000001, 0x800000, CRC(c698fd5d) SHA1(16818883b06849ba2f8d61bdd5e21aaf99bd8408) ) /* Plane 2,3 */ + ROM_LOAD16_BYTE( "256-c7.bin", 0x3000000, 0x800000, CRC(cfceddd2) SHA1(7def666adf8bd1703f40c61f182fc040b6362dc9) ) /* Plane 0,1 */ + ROM_LOAD16_BYTE( "256-c8.bin", 0x3000001, 0x800000, CRC(4d9be34c) SHA1(a737bdfa2b815aea7067e7af2636e83a9409c414) ) /* Plane 2,3 */ +ROM_END