On neogeo.c driver section:
ROM_START( cnbe )
ROM_REGION( 0x100000, REGION_CPU1, 0 )
ROM_LOAD16_WORD_SWAP( "cnbe-p1.bin", 0x000000, 0x080000, CRC(7ece4186) SHA1(fc4ed3b5ed551744542c2ff1e45a6e97c68eff88) )
NEO_SFIX_64K( "cnbe-s1.bin", CRC(40a4698f) SHA1 (be631408b261906f36c41c58c775c1a4c418a256) )
NEO_BIOS_SOUND_128K( "cnbe-m1.bin", CRC(a5821c9c) SHA1(81779f12bbb012bf910c484725779e03b07e44ec) )
ROM_REGION( 0x80000, REGION_SOUND1, 0 )
ROM_LOAD( "cnbe-v1.bin", 0x000000, 0x80000, CRC(70191764) SHA1(7dff2122c32886a3626c0d7befc7e7c3961c6cee) )
NO_DELTAT_REGION
ROM_REGION( 0x200000, REGION_GFX3, 0 )
ROM_LOAD16_BYTE( "cnbe-c1.bin", 0x000000, 0x100000, CRC(0f4fea6f) SHA1(2eeaa661272817dc205072cd63d8bffbe7d6fbec) ) /* Plane 0,1 */
ROM_LOAD16_BYTE( "cnbe-c2.bin", 0x000001, 0x100000, CRC(3d5fc36f) SHA1(59c045bc5999ccd6c1413364a6cd337a858f599e) ) /* Plane 2,3 */
ROM_END
ROM_START( ngem2k )
ROM_REGION( 0x100000, REGION_CPU1, 0 )
ROM_LOAD16_WORD_SWAP( "ngem-p1.bin", 0x000000, 0x080000, CRC(f2c42fe3) SHA1(fcd7453019ad21ecf77999a60b6792fc8d72d409) )
NEO_SFIX_64K( "ngem-s1.bin", CRC(fb3c02d2) SHA1 (961cf3cfd56e9ace059265f0ff4c283289972938) )
NEO_BIOS_SOUND_128K( "ngem-m1.bin", CRC(b1f44a15) SHA1(a1d7b498430b713b15ce886bac2ea473adadfb0c) )
ROM_REGION( 0x80000, REGION_SOUND1, 0 )
ROM_LOAD( "ngem-v1.bin", 0x000000, 0x80000, CRC(c32199f0) SHA1(2e17a6736c27d703c64d58fdc1b43edd8bb36d35) )
NO_DELTAT_REGION
ROM_REGION( 0x200000, REGION_GFX3, 0 )
ROM_LOAD16_BYTE( "ngem-c1.bin", 0x000000, 0x100000, CRC(a8e2ab47) SHA1(69a6ee8f659a63600a48e31b10782fba263e32e2) ) /* Plane 0,1 */
ROM_LOAD16_BYTE( "ngem-c2.bin", 0x000001, 0x100000, CRC(a738ea1c) SHA1(3b71f43ff30f4b15b5cd85dd9e95ebc7e84eb5a3) ) /* Plane 2,3 */
ROM_END
GAMEB( 2006, cnbe,   neogeo,  neogeo, neogeo, neogeo, neogeo,  ROT0, "Blastar", "Codename Blutengel", 0 )
GAMEB( 2006, ngem2k,  neogeo,  neogeo, neogeo, neogeo, neogeo,  ROT0, "Blastar", "NGEM2K", 0 )
Dont forget to setup the resolution on videohardware section:
!strcmp(Machine->gamedrv->name,"cnbe") ||
!strcmp(Machine->gamedrv->name,"ngem2k") ||
Finally on driver.c entry:
DRIVER( cnbe )/* xxxx (c) 2006 Codename Blutengel */
DRIVER( ngem2k )/* xxxx (c) 2006 NGEM2K */