diff --git a/src/mame/drivers/galaxian.cpp b/src/mame/drivers/galaxian.cpp
index e555f9938d2..878d1a5b614 100644
--- a/src/mame/drivers/galaxian.cpp
+++ b/src/mame/drivers/galaxian.cpp
@@ -8063,6 +8063,24 @@ ROM_START( zerotimed )
 	ROM_LOAD( "6l.bpr",       0x0000, 0x0020, CRC(c3ac9467) SHA1(f382ad5a34d282056c78a5ec00c30ec43772bae2) )
 ROM_END
 
+/* Marti Colls (Falgas) bootleg */
+ROM_START( zerotimemc )
+	ROM_REGION( 0x4000, "maincpu", 0 )
+	ROM_LOAD( "4_7k.bin", 0x0000, 0x0800, CRC(ac64aabe) SHA1(1cd834bf8b387428639dffd5e4b0ee72fa8aafdf) )
+	ROM_LOAD( "5_7j.bin", 0x0800, 0x0800, CRC(a433067e) SHA1(1aed1a2153c4a32a9996fc709e544f2063885599) )
+	ROM_LOAD( "6_7h.bin", 0x1000, 0x0800, CRC(7c86fc8a) SHA1(ea7e16cfd765fb992bd476796e2e3a5f87e8360c) )
+	ROM_LOAD( "7_7f.bin", 0x1800, 0x0800, CRC(786d690a) SHA1(50c5c07941006e3b71afbf057d27daa2f2274925) )
+	ROM_LOAD( "3_7l.bin", 0x2000, 0x0800, CRC(af9260d7) SHA1(955e466a8989993351dc69d73ca322c1c9af7b63) )
+
+	ROM_REGION( 0x1000, "gfx1", 0 )
+	ROM_LOAD( "2_1hj.bin", 0x0000, 0x0800, CRC(bc7d0985) SHA1(550a44c9ddc8da66a29405591a590f91d2675cdf) )
+	ROM_LOAD( "1_1kl.bin", 0x0800, 0x0800, CRC(c48b88d0) SHA1(dc79f596395af0f3137eb932fe224ab8307d8771) )
+
+	/* Not dumped on the Marti Colls PCB, taken from the parent set */
+	ROM_REGION( 0x0020, "proms", 0 )
+	ROM_LOAD( "6l.bpr",       0x0000, 0x0020, CRC(c3ac9467) SHA1(f382ad5a34d282056c78a5ec00c30ec43772bae2) )
+ROM_END
+
 
 ROM_START( starfght )
 	ROM_REGION( 0x4000, "maincpu", 0 )
@@ -12382,8 +12400,9 @@ GAME( 1979, supergs,     galaxian, galaxian,   superg,     galaxian_state, init_
 GAME( 1979, galturbo,    galaxian, galaxian,   superg,     galaxian_state, init_galaxian,   ROT90,  "hack", "Galaxian Turbo (superg hack)", MACHINE_SUPPORTS_SAVE )
 GAME( 1979, galap1,      galaxian, galaxian,   superg,     galaxian_state, init_galaxian,   ROT90,  "hack", "Space Invaders Galactica (galaxiana hack)", MACHINE_SUPPORTS_SAVE )
 GAME( 1979, galap4,      galaxian, galaxian,   superg,     galaxian_state, init_galaxian,   ROT90,  "hack (G.G.I)", "Galaxian Part 4 (hack)", MACHINE_SUPPORTS_SAVE )
-GAME( 1979, zerotime,    galaxian, galaxian,   zerotime,   galaxian_state, init_galaxian,   ROT90,  "bootleg? (Petaco S.A.)", "Zero Time", MACHINE_SUPPORTS_SAVE )
+GAME( 1979, zerotime,    galaxian, galaxian,   zerotime,   galaxian_state, init_galaxian,   ROT90,  "bootleg? (Petaco S.A.)", "Zero Time (Petaco S.A.)", MACHINE_SUPPORTS_SAVE )
 GAME( 1979, zerotimed,   galaxian, galaxian,   zerotime,   galaxian_state, init_galaxian,   ROT90,  "bootleg (Datamat)", "Zero Time (Datamat)", MACHINE_SUPPORTS_SAVE ) // a 1994 bootleg of the Petaco bootleg
+GAME( 1979, zerotimemc,  galaxian, galaxian,   zerotime,   galaxian_state, init_galaxian,   ROT90,  "bootleg (Marti Colls)", "Zero Time (Marti Colls)", MACHINE_SUPPORTS_SAVE )
 GAME( 1979, starfght,    galaxian, galaxian,   swarm,      galaxian_state, init_galaxian,   ROT90,  "bootleg (Jeutel)", "Star Fighter", MACHINE_SUPPORTS_SAVE )
 GAME( 1979, galaxbsf,    galaxian, galaxian,   galaxian,   galaxian_state, init_galaxian,   ROT90,  "bootleg", "Galaxian (bootleg, set 1)", MACHINE_SUPPORTS_SAVE )
 GAME( 1979, galaxianbl,  galaxian, galaxian,   galaxianbl, galaxian_state, init_galaxian,   ROT90,  "bootleg", "Galaxian (bootleg, set 2)", MACHINE_SUPPORTS_SAVE )
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index db7b67b5b11..ab5ef3025b2 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -13467,8 +13467,9 @@ victorycb                       // (c) Comsoft (bootleg)
 warofbug                        // (c) 1981 Armenia
 warofbugg                       // German Version
 warofbugu                       // (c) 1981 Armenia
-zerotime                        // hack
-zerotimed                       // hack
+zerotime                        // hack (Petaco S.A.)
+zerotimed                       // hack (Datamat)
+zerotimemc                      // hack (Marti Colls)
 zigzagb                         // (c) 1982 LAX (bootleg)
 zigzagb2                        // (c) 1982 LAX (bootleg)