diff --git a/src/mame/drivers/mephisto_brikett.cpp b/src/mame/drivers/mephisto_brikett.cpp
index 5fce26cd829..2e38dd3d94e 100644
--- a/src/mame/drivers/mephisto_brikett.cpp
+++ b/src/mame/drivers/mephisto_brikett.cpp
@@ -495,11 +495,18 @@ ROM_START( mephisto )
 ROM_END
 
 
-ROM_START( mephisto2 )
+ROM_START( mephisto2 ) // cartridge s/n 0302446
 	ROM_REGION( 0x10000, "maincpu", 0 )
-	ROM_LOAD("5619_03_351", 0x0000, 0x1000, CRC(5b13d7bf) SHA1(e1b7dee278a03f75e8a1554715fca4c7fbbc1cb8) ) // TC5334P
-	ROM_LOAD("5620_03_352", 0x1000, 0x1000, CRC(e93bf521) SHA1(42f9adce0d5e25b1b9d10217f8e3e0994d7b70d5) ) // "
-	ROM_LOAD("5621_03_353", 0x2000, 0x1000, CRC(430dac62) SHA1(a0e23fcb4cfa27778a9398bd4994a7792e4541d0) ) // "
+	ROM_LOAD("5619_03_351.u1", 0x0000, 0x1000, CRC(5b13d7bf) SHA1(e1b7dee278a03f75e8a1554715fca4c7fbbc1cb8) ) // TC5334P
+	ROM_LOAD("5620_03_352.u2", 0x1000, 0x1000, CRC(e93bf521) SHA1(42f9adce0d5e25b1b9d10217f8e3e0994d7b70d5) ) // "
+	ROM_LOAD("5621_03_353.u3", 0x2000, 0x1000, CRC(430dac62) SHA1(a0e23fcb4cfa27778a9398bd4994a7792e4541d0) ) // "
+ROM_END
+
+ROM_START( mephisto2a ) // cartridge s/n 0037011
+	ROM_REGION( 0x10000, "maincpu", 0 )
+	ROM_LOAD("4005_02_351_01.u1", 0x0000, 0x1000, CRC(5b13d7bf) SHA1(e1b7dee278a03f75e8a1554715fca4c7fbbc1cb8) ) // HN462532G
+	ROM_LOAD("4005_02_352_01.u2", 0x1000, 0x1000, CRC(da88b62f) SHA1(f5e71521ba8ab0b481e4725ffa706b1c157424b5) ) // "
+	ROM_LOAD("4005_02_353_01.u3", 0x2000, 0x1000, CRC(1f933d33) SHA1(5d5bfd40158354830c434f4c8b4ff1cac8ab4f5c) ) // "
 ROM_END
 
 ROM_START( mephisto2e )
@@ -533,7 +540,8 @@ ROM_END
 //    YEAR  NAME        PARENT    CMP MACHINE     INPUT       STATE          INIT        COMPANY, FULLNAME, FLAGS
 CONS( 1980, mephisto,   0,         0, mephisto,   mephisto,   brikett_state, empty_init, "Hegener + Glaser", "Mephisto", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
 
-CONS( 1981, mephisto2,  0,         0, mephisto2,  mephisto,   brikett_state, empty_init, "Hegener + Glaser", "Mephisto II", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
+CONS( 1981, mephisto2,  0,         0, mephisto2,  mephisto,   brikett_state, empty_init, "Hegener + Glaser", "Mephisto II (set 1)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
+CONS( 1981, mephisto2a, mephisto2, 0, mephisto2,  mephisto,   brikett_state, empty_init, "Hegener + Glaser", "Mephisto II (set 2)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
 CONS( 1981, mephisto2e, mephisto2, 0, mephisto2e, mephisto2e, brikett_state, empty_init, "Hegener + Glaser", "Mephisto ESB II", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
 
 CONS( 1983, mephisto3,  0,         0, mephisto3,  mephisto3,  brikett_state, empty_init, "Hegener + Glaser", "Mephisto III (ver. A)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 93eb25abb89..55bd29c2d43 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -21906,6 +21906,7 @@ berlinpl                        // 1996 Mephisto Berlin Pro London Upgrade
 @source:mephisto_brikett.cpp
 mephisto
 mephisto2
+mephisto2a
 mephisto2e
 mephisto3
 mephisto3b