diff --git a/src/mame/drivers/dkong.c b/src/mame/drivers/dkong.c
index 7519f27fae6..7f21c53e591 100644
--- a/src/mame/drivers/dkong.c
+++ b/src/mame/drivers/dkong.c
@@ -2890,10 +2890,40 @@ ROM_START( dkongx )
 	/* space for diagnostic ROM */
 
 	ROM_REGION( 0x10000, "braze", 0 )
-	ROM_LOAD( "27512.bin",  0x0000, 0x10000, CRC(6e95ca0d) )
-	//ROM_LOAD( "27512.bin",  0x4000, 0xc000, CRC(6e95ca0d) )
-	//ROM_CONTINUE(0x0000,0x4000)
-  
+	ROM_LOAD( "27512.bin",  0x0000, 0x10000,  CRC(6e95ca0d) SHA1(c058add0f146d577e3df0ba60828fe1734e78d01) )
+
+	ROM_REGION( 0x1800, "sound", 0 )	/* sound */
+	ROM_LOAD( "s_3i_b.bin",   0x0000, 0x0800, CRC(45a4ed06) SHA1(144d24464c1f9f01894eb12f846952290e6e32ef) )
+	ROM_RELOAD(               0x0800, 0x0800 )
+	ROM_LOAD( "s_3j_b.bin",   0x1000, 0x0800, CRC(4743fe92) SHA1(6c82b57637c0212a580591397e6a5a1718f19fd2) )
+
+	ROM_REGION( 0x1000, "gfx1", ROMREGION_DISPOSE )
+	ROM_LOAD( "v_5h_b.bin",   0x0000, 0x0800, CRC(12c8c95d) SHA1(a57ff5a231c45252a63b354137c920a1379b70a3) )
+	ROM_LOAD( "v_3pt.bin",    0x0800, 0x0800, CRC(15e9c5e9) SHA1(976eb1e18c74018193a35aa86cff482ebfc5cc4e) )
+
+	ROM_REGION( 0x2000, "gfx2", ROMREGION_DISPOSE )
+	ROM_LOAD( "l_4m_b.bin",   0x0000, 0x0800, CRC(59f8054d) SHA1(793dba9bf5a5fe76328acdfb90815c243d2a65f1) )
+	ROM_LOAD( "l_4n_b.bin",   0x0800, 0x0800, CRC(672e4714) SHA1(92e5d379f4838ac1fa44d448ce7d142dae42102f) )
+	ROM_LOAD( "l_4r_b.bin",   0x1000, 0x0800, CRC(feaa59ee) SHA1(ecf95db5a20098804fc8bd59232c66e2e0ed3db4) )
+	ROM_LOAD( "l_4s_b.bin",   0x1800, 0x0800, CRC(20f2ef7e) SHA1(3bc482a38bf579033f50082748ee95205b0f673d) )
+
+	ROM_REGION( 0x0300, "proms", 0 )
+	ROM_LOAD( "c-2k.bpr",     0x0000, 0x0100, CRC(e273ede5) SHA1(b50ec9e1837c00c20fb2a4369ec7dd0358321127) ) /* palette low 4 bits (inverted) */
+	ROM_LOAD( "c-2j.bpr",     0x0100, 0x0100, CRC(d6412358) SHA1(f9c872da2fe8e800574ae3bf483fb3ccacc92eb3) ) /* palette high 4 bits (inverted) */
+	ROM_LOAD( "v-5e.bpr",     0x0200, 0x0100, CRC(b869b8f5) SHA1(c2bdccbf2654b64ea55cd589fd21323a9178a660) ) /* character color codes on a per-column basis */
+ROM_END
+
+ROM_START( dkongx11 )
+	ROM_REGION( 0x10000, "main", 0 )
+	ROM_LOAD( "c_5et_g.bin",  0x0000, 0x1000, CRC(ba70b88b) SHA1(d76ebecfea1af098d843ee7e578e480cd658ac1a) )
+	ROM_LOAD( "c_5ct_g.bin",  0x1000, 0x1000, CRC(5ec461ec) SHA1(acb11a8fbdbb3ab46068385fe465f681e3c824bd) )
+	ROM_LOAD( "c_5bt_g.bin",  0x2000, 0x1000, CRC(1c97d324) SHA1(c7966261f3a1d3296927e0b6ee1c58039fc53c1f) )
+	ROM_LOAD( "c_5at_g.bin",  0x3000, 0x1000, CRC(b9005ac0) SHA1(3fe3599f6fa7c496f782053ddf7bacb453d197c4) )
+	/* space for diagnostic ROM */
+
+	ROM_REGION( 0x10000, "braze", 0 )
+	ROM_LOAD( "d2k11.bin",    0x00000, 0x10000, CRC(2048fc42) SHA1(e427a09ed8e792ee8ce01cd0b07c6a0d5a7c5536) )
+
 	ROM_REGION( 0x1800, "sound", 0 )	/* sound */
 	ROM_LOAD( "s_3i_b.bin",   0x0000, 0x0800, CRC(45a4ed06) SHA1(144d24464c1f9f01894eb12f846952290e6e32ef) )
 	ROM_RELOAD(               0x0800, 0x0800 )
@@ -3040,7 +3070,7 @@ static DRIVER_INIT( dkongx )
 	UINT8 *decrypted;
 
 	decrypted = auto_malloc(0x10000);
-	
+
 	memory_install_read8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x0000, 0x5fff, 0, 0, SMH_BANK1 );
 	memory_install_read8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x8000, 0xffff, 0, 0, SMH_BANK2 );
 
@@ -3103,4 +3133,5 @@ GAME( 1984, drktnjr,  drakton,  drktnjr,  drakton,  drakton,  ROT90, "Epos Corpo
 GAME( 1985, strtheat, 0,        strtheat, strtheat, strtheat, ROT90, "Epos Corporation", "Street Heat - Cardinal Amusements", GAME_SUPPORTS_SAVE )
 
 /* Hacks */
-GAME( 200?, dkongx,   dkong,    braze,   dkong,    dkongx,    ROT90, "Jeff's Romhack", "D2K Jumpman returns (Hack)", GAME_SUPPORTS_SAVE )
+GAME( 200?, dkongx,   dkong,    braze,   dkong,    dkongx,    ROT90, "Nintendo (hack, Jeff's Romhack)", "D2K Jumpman returns (V1.2) (hack)", GAME_SUPPORTS_SAVE )
+GAME( 200?, dkongx11, dkong,    braze,   dkong,    dkongx,    ROT90, "Nintendo (hack, Jeff's Romhack)", "D2K Jumpman returns (V1.1) (hack)", GAME_SUPPORTS_SAVE )
diff --git a/src/mame/mamedriv.c b/src/mame/mamedriv.c
index d3320d755eb..6fe4f79d090 100644
--- a/src/mame/mamedriv.c
+++ b/src/mame/mamedriv.c
@@ -968,7 +968,8 @@ const game_driver * const drivers[] =
 	DRIVER( herbiedk )	/* (c) 1984 CVS */
 	DRIVER( herodk )	/* (c) 1984 Seatongrove + Crown license */
 	DRIVER( herodku )	/* (c) 1984 Seatongrove + Crown license */
-	DRIVER( dkongx )	/* 200? Jeff's Romhack */
+	DRIVER( dkongx )	/* 200? hack/bootleg by Jeff's Romhack */
+	DRIVER( dkongx11 )	/* 200? hack/bootleg by Jeff's Romhack */
 	DRIVER( skyskipr )	/* (c) 1981 */
 	DRIVER( popeye )	/* (c) 1982 */
 	DRIVER( popeyeu )	/* (c) 1982 */