diff --git a/scripts/target/mame/mess.lua b/scripts/target/mame/mess.lua
index 5358d184ec8..5844690ab6f 100644
--- a/scripts/target/mame/mess.lua
+++ b/scripts/target/mame/mess.lua
@@ -3732,7 +3732,6 @@ files {
 	MAME_DIR .. "src/mame/drivers/geniusiq.cpp",
 	MAME_DIR .. "src/mame/drivers/geniusjr.cpp",
 	MAME_DIR .. "src/mame/drivers/glcx.cpp",
-	MAME_DIR .. "src/mame/drivers/vtech_unk2.cpp",
 	MAME_DIR .. "src/mame/drivers/vtech_eu3a12.cpp",
 	MAME_DIR .. "src/mame/drivers/iqunlim.cpp",
 	MAME_DIR .. "src/mame/drivers/laser3k.cpp",
diff --git a/src/mame/drivers/prestige.cpp b/src/mame/drivers/prestige.cpp
index 6c6e4b33801..e5e01a759ff 100644
--- a/src/mame/drivers/prestige.cpp
+++ b/src/mame/drivers/prestige.cpp
@@ -882,6 +882,15 @@ ROM_START( glmcolor )
 	ROM_LOAD( "27-5673-00.u6", 0x00000, 0x100000, CRC(c4245392) SHA1(bb651aaf11b75f4155c0a0106de9394018110cc7) )
 ROM_END
 
+ROM_START( glmmc )
+	// FIXME: either ROM loading or banking is wrong here...
+	ROM_REGION( 0x100000, "maincpu", 0 )
+	ROM_LOAD( "27-5889-00.bin", 0x060000, 0x020000, CRC(5e2c6359) SHA1(cc01c7bd5c87224b63dd1044db5a36a5cb7824f1) )
+	ROM_CONTINUE( 0x040000, 0x020000 )
+	ROM_CONTINUE( 0x020000, 0x020000 )
+	ROM_CONTINUE( 0x000000, 0x020000 )
+ROM_END
+
 ROM_START( gkidabc )
 	ROM_REGION( 0x20000, "maincpu", 0 )
 	ROM_LOAD("27-5730-00.bin", 0x00000, 0x20000, CRC(64664708) SHA1(74212c2dec1caa41dbc933b50f857904a8ac623b))
@@ -907,6 +916,7 @@ COMP( 1998, snotecu,  0,       0,      snotec,   glcolor,  prestige_state, empty
 COMP( 1998, gl7007sl, 0,       0,      gl7007sl, prestige, prestige_state, empty_init, "VTech",  "Genius Leader 7007SL (Germany)",       MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
 COMP( 1998, prestige, 0,       0,      prestige, prestige, prestige_state, empty_init, "VTech",  "PreComputer Prestige Elite",           MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
 COMP( 1999, gwnf,     0,       0,      prestige, prestige, prestige_state, empty_init, "VTech",  "Genius Winner Notebook Fun (Germany)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
+COMP( 19??, glmmc,    0,       0,      prestige, prestige, prestige_state, empty_init, "VTech",  "Genius Leader Master Mega Color (Germany)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
 
 
 // these systems need to be moved into a separate driver
diff --git a/src/mame/drivers/vtech_unk2.cpp b/src/mame/drivers/vtech_unk2.cpp
deleted file mode 100644
index bd8ebe47add..00000000000
--- a/src/mame/drivers/vtech_unk2.cpp
+++ /dev/null
@@ -1,49 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Sandro Ronco
-
-// Unknown CPU type
-
-#include "emu.h"
-#include "screen.h"
-
-class glmmc_state : public driver_device
-{
-public:
-	glmmc_state(const machine_config &mconfig, device_type type, const char *tag)
-		: driver_device(mconfig, type, tag)
-	{ }
-
-	void glmmc(machine_config &config);
-
-private:
-	virtual uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
-};
-
-uint32_t glmmc_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
-{
-	return 0;
-}
-
-static INPUT_PORTS_START( glmmc )
-INPUT_PORTS_END
-
-void glmmc_state::glmmc(machine_config &config)
-{
-	/* basic machine hardware */
-	// UNKNOWN(config, "maincpu", unknown); // CPU type is unknown, epoxy blob
-
-	/* video hardware */
-	screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
-	screen.set_refresh_hz(50);
-	screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
-	screen.set_size(512, 256);
-	screen.set_visarea(0, 512-1, 0, 256-1);
-	screen.set_screen_update(FUNC(glmmc_state::screen_update));
-}
-
-ROM_START( glmmc )
-	ROM_REGION(0x200000, "maincpu", 0)
-	ROM_LOAD( "27-5889-00.bin", 0x000000, 0x080000, CRC(5e2c6359) SHA1(cc01c7bd5c87224b63dd1044db5a36a5cb7824f1) )
-ROM_END
-
-COMP( 19??, glmmc, 0, 0, glmmc, glmmc, glmmc_state, empty_init, "Video Technology", "Genius Leader Master Mega Color (Germany)", MACHINE_IS_SKELETON)
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 3d18ca6aea1..b551720755d 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -33013,6 +33013,7 @@ gl6000sl                        // Genius Leader 6000SL (Germany)
 gl7007sl                        // Genius Leader 7007SL (Germany)
 glcolor                         // Genius Leader Color (Germany)
 glmcolor                        // Genius Leader Magic Color (Germany)
+glmmc                           // Genius Leader Master Mega Color (Germany)
 glscolor                        // Genius Leader Super Color (Germany)
 gwnf                            // Genius Winner Notebook Fun (Germany)
 prestige                        // PreComputer Prestige Elite
@@ -39307,9 +39308,6 @@ laser700                        // 1984? Laser 700
 @source:vtech_eu3a12.cpp
 vreadere
 
-@source:vtech_unk2.cpp
-glmmc                           // 199? Genius Master Mega Color
-
 @source:vulgus.cpp
 mach9                           // bootleg (ITISA)
 vulgus                          // 5/1984 (c) 1984
diff --git a/src/mame/mess.flt b/src/mame/mess.flt
index 8b3f350e6ba..eeaa8ec2e9f 100644
--- a/src/mame/mess.flt
+++ b/src/mame/mess.flt
@@ -902,7 +902,6 @@ vta2000.cpp
 vtech1.cpp
 vtech2.cpp
 vtech_eu3a12.cpp
-vtech_unk2.cpp
 wangpc.cpp
 wicat.cpp
 wswan.cpp