diff --git a/src/mame/drivers/aerofgt.c b/src/mame/drivers/aerofgt.c
index 069714914e0..c54e817bc6a 100644
--- a/src/mame/drivers/aerofgt.c
+++ b/src/mame/drivers/aerofgt.c
@@ -1840,6 +1840,28 @@ ROM_START( pspikesk )
 	ROM_LOAD( "peel18cv8-1103-u112.76", 0x0200, 0x0155, CRC(786da44c) SHA1(02fd63083631abeced42714fb58a11b7d463285b) )
 ROM_END
 
+ROM_START( pspikesu )
+	ROM_REGION( 0x40000, "maincpu", 0 ) /* 68000 code */
+	ROM_LOAD16_WORD_SWAP( "svolly91.73", 0x00000, 0x40000, CRC(bfbffcdb) SHA1(2bba99cb6d0cb2fbb3cd1242551dd7e2c6ebef50) )
+
+	ROM_REGION( 0x30000, "audiocpu", 0 )    /* 64k for the audio CPU + banks */
+	ROM_LOAD( "19",           0x00000, 0x20000, CRC(7e8ed6e5) SHA1(eeb1a1e1989fad8fc1e741928422efaec0598868) )
+	ROM_RELOAD(               0x10000, 0x20000 )
+
+	ROM_REGION( 0x080000, "gfx1", 0 )
+	ROM_LOAD( "g7h",          0x000000, 0x80000, CRC(74c23c3d) SHA1(c0ac57d1f05c42556f97154ce1a08f465948546b) )
+
+	ROM_REGION( 0x100000, "gfx2", 0 )
+	ROM_LOAD( "g7j",          0x000000, 0x80000, CRC(0b9e4739) SHA1(64b440a5026735aafe1a7cc2806fe0d78f4a6fba) )
+	ROM_LOAD( "g7l",          0x080000, 0x80000, CRC(943139ff) SHA1(59065f9c3b3a47159c5968df199bdcb1b4f51f29) )
+
+	ROM_REGION( 0x40000, "ymsnd.deltat", 0 ) /* sound samples */
+	ROM_LOAD( "a47",          0x00000, 0x40000, CRC(c6779dfa) SHA1(ea7adefdb0da02755428aac9a6f86c908fc11253) )
+
+	ROM_REGION( 0x100000, "ymsnd", 0 ) /* sound samples */
+	ROM_LOAD( "o5b",          0x000000, 0x100000, CRC(07d6cbac) SHA1(d3d5778dbaca7b6cdceae959d0847d56df7b5cc1) )
+ROM_END
+
 ROM_START( svolly91 )
 	ROM_REGION( 0x40000, "maincpu", 0 ) /* 68000 code */
 	ROM_LOAD16_WORD_SWAP( "u11.jpn",      0x00000, 0x40000, CRC(ea2e4c82) SHA1(f9cf9122499d9b1e54221fb8b6ef9c12004ca85e) )
@@ -2488,6 +2510,7 @@ GAME( 1990, spinlbrkj,spinlbrk, spinlbrk, spinlbrk, driver_device, 0, ROT0,   "V
 
 GAME( 1991, pspikes,  0,        pspikes,  pspikes, driver_device,  0, ROT0,   "Video System Co.", "Power Spikes (World)", GAME_SUPPORTS_SAVE | GAME_NO_COCKTAIL )
 GAME( 1991, pspikesk, pspikes,  pspikes,  pspikes, driver_device,  0, ROT0,   "Video System Co.", "Power Spikes (Korea)", GAME_SUPPORTS_SAVE | GAME_NO_COCKTAIL )
+GAME( 1991, pspikesu, pspikes,  pspikes,  pspikes, driver_device,  0, ROT0,   "Video System Co.", "Power Spikes (US)", GAME_SUPPORTS_SAVE | GAME_NO_COCKTAIL )
 GAME( 1991, svolly91, pspikes,  pspikes,  pspikes, driver_device,  0, ROT0,   "Video System Co.", "Super Volley '91 (Japan)", GAME_SUPPORTS_SAVE | GAME_NO_COCKTAIL )
 GAME( 1991, pspikesb, pspikes,  pspikesb, pspikesb, driver_device, 0, ROT0,   "bootleg",          "Power Spikes (bootleg)", GAME_SUPPORTS_SAVE | GAME_NO_COCKTAIL )
 GAME( 1991, spikes91, pspikes,  spikes91, pspikes, driver_device,  0, ROT0,   "bootleg",          "1991 Spikes (Italian bootleg)", GAME_SUPPORTS_SAVE | GAME_NO_SOUND | GAME_NO_COCKTAIL )
diff --git a/src/mame/drivers/shanghai.c b/src/mame/drivers/shanghai.c
index 875d83c3a64..640b979d68a 100644
--- a/src/mame/drivers/shanghai.c
+++ b/src/mame/drivers/shanghai.c
@@ -566,6 +566,21 @@ ROM_START( shangha2 )
 	ROM_LOAD16_BYTE( "sht-30j", 0xc0000, 0x20000, CRC(2861a894) SHA1(6da99d15f41e900735f8943f2710487817f98579) )
 ROM_END
 
+ROM_START( shangha2a ) // content is the same, just different ROM sizes
+	ROM_REGION( 0x100000, "maincpu", 0 )
+
+	ROM_LOAD16_BYTE( "3.bin", 0x80001, 0x10000, CRC(93aacccb) SHA1(8b29b9b24cf268a4376b7f653c19d6f46d698552) )
+	ROM_LOAD16_BYTE( "1.bin", 0x80000, 0x10000, CRC(0fb2d8ee) SHA1(fee8074d8116f551c634f088b8121d48a9b4a008) )
+	ROM_LOAD16_BYTE( "7.bin", 0xa0001, 0x10000, CRC(f9e06880) SHA1(7840b6672cc02fd70f478a5c9f11cfc26ddfca52) )
+	ROM_LOAD16_BYTE( "5.bin", 0xa0000, 0x10000, CRC(06ada73c) SHA1(13ee91b94489096f03afc05fdd3d4c65a87a6628) )
+	ROM_LOAD16_BYTE( "4.bin", 0xc0001, 0x10000, CRC(b4d82724) SHA1(84496b7ad43817c307227bdab4f58a19484519bb) )
+	ROM_LOAD16_BYTE( "2.bin", 0xc0000, 0x10000, CRC(97a25fdb) SHA1(43f065b737e5c4bd44c02ab1d0d6fa34aea8d139) )
+
+	ROM_LOAD16_BYTE( "8.bin", 0xf0001, 0x08000, CRC(21c41557) SHA1(967c97a6b35407a5b32938c88bf7e719a1489b6b) )
+	ROM_LOAD16_BYTE( "6.bin", 0xf0000, 0x08000, CRC(14250057) SHA1(15af554099c977e3c753d758080805581a9e4c50) )
+ROM_END
+
+
 /*
 
 Kyuukyoku no Othello
@@ -638,5 +653,6 @@ ROM_END
 
 
 GAME( 1988, shanghai, 0, shanghai, shanghai, driver_device, 0, ROT0, "Sunsoft", "Shanghai (Japan)", GAME_IMPERFECT_GRAPHICS )
-GAME( 1989, shangha2, 0, shangha2, shangha2, driver_device, 0, ROT0, "Sunsoft", "Shanghai II (Japan)", 0 )
+GAME( 1989, shangha2, 0, shangha2, shangha2, driver_device, 0, ROT0, "Sunsoft", "Shanghai II (Japan, set 1)", 0 )
+GAME( 1989, shangha2a, shangha2, shangha2, shangha2, driver_device, 0, ROT0, "Sunsoft", "Shanghai II (Japan, set 2)", 0 )
 GAME( 1990, kothello, 0, kothello, kothello, driver_device, 0, ROT0, "Success", "Kyuukyoku no Othello", GAME_IMPERFECT_GRAPHICS )
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index e253685e703..46935ec3b7b 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -8257,6 +8257,7 @@ spinlbrku       // (c) 1990 V-System Co. (US)
 spinlbrkj       // (c) 1990 V-System Co. (Japan)
 pspikes         // (c) 1991 Video System Co. (World)
 pspikesk        // (c) 1991 Video System Co. (Korea)
+pspikesu		// (c) 1991 Video System Co. (US)
 svolly91        // (c) 1991 Video System Co. (Japan)
 pspikesb        // bootleg
 spikes91        // bootleg
@@ -8735,6 +8736,7 @@ ikki            // TVG17 (c) 1985 Sun Electronics (Japan)
 farmer          // TVG17 (c) 1985 Sun Electronics
 shanghai        // (c) 1988 Sunsoft (Sun Electronics)
 shangha2        // (c) 1989 Sunsoft (Sun Electronics)
+shangha2a		// (c) 1989 Sunsoft (Sun Electronics)
 shangha3        // (c) 1993 Sunsoft
 heberpop        // (c) 1994 Sunsoft / Atlus
 blocken         // (c) 1994 KID / Visco