diff --git a/src/mame/drivers/model2.c b/src/mame/drivers/model2.c
index 61b05228afb..6d7b53c9404 100644
--- a/src/mame/drivers/model2.c
+++ b/src/mame/drivers/model2.c
@@ -1515,6 +1515,7 @@ READ8_MEMBER(model2_state::tgpid_r)
 	return ID[offset];
 }
 
+/* Sky Target, TODO */
 READ32_MEMBER(model2_state::polygon_count_r)
 {
 	return 0;
@@ -3188,8 +3189,8 @@ ROM_START( manxtt ) /* Manx TT Superbike Twin Revision D, Model 2A - Can be set
 	ROM_LOAD32_WORD( "mpr-18753.16", 0x000000, 0x200000, CRC(33ddaa0d) SHA1(26f643d6b9cecf08bd249290a670a0edea1b5be4) )
 	ROM_LOAD32_WORD( "mpr-18756.20", 0x000002, 0x200000, CRC(28713617) SHA1(fc2a6258387a1bc3fae2109b2dae6dd2a1984ab5) )
 	ROM_LOAD32_WORD( "mpr-18754.17", 0x400000, 0x200000, CRC(09aabde5) SHA1(e50646efb2ca59792833ce91398c4efa861ad6d1) )
-	ROM_LOAD32_WORD( "mpr-18757.21", 0x400004, 0x200000, CRC(25fc92e9) SHA1(226c4c7289b3b6009c1ffea4a171e3fb4e31a67c) )
-	ROM_LOAD32_WORD( "mpr-18755.18", 0x000000, 0x200000, CRC(bf094d9e) SHA1(2cd7130b226a28098191a6caf6fd761bb0bfac7b) )
+	ROM_LOAD32_WORD( "mpr-18757.21", 0x400002, 0x200000, CRC(25fc92e9) SHA1(226c4c7289b3b6009c1ffea4a171e3fb4e31a67c) )
+	ROM_LOAD32_WORD( "mpr-18755.18", 0x800000, 0x200000, CRC(bf094d9e) SHA1(2cd7130b226a28098191a6caf6fd761bb0bfac7b) )
 	ROM_LOAD32_WORD( "mpr-18758.22", 0x800002, 0x200000, CRC(1b5473d0) SHA1(658e33503f6990f4d9a954c63efad5f53d15f3a4) )
 
 	ROM_REGION( 0x800000, "tgp", 0 ) // TGP program? (COPRO socket)
@@ -3248,8 +3249,8 @@ ROM_START( manxttc ) /* Manx TT Superbike Twin Revision C, Model 2A */
 	ROM_LOAD32_WORD( "mpr-18753.16", 0x000000, 0x200000, CRC(33ddaa0d) SHA1(26f643d6b9cecf08bd249290a670a0edea1b5be4) )
 	ROM_LOAD32_WORD( "mpr-18756.20", 0x000002, 0x200000, CRC(28713617) SHA1(fc2a6258387a1bc3fae2109b2dae6dd2a1984ab5) )
 	ROM_LOAD32_WORD( "mpr-18754.17", 0x400000, 0x200000, CRC(09aabde5) SHA1(e50646efb2ca59792833ce91398c4efa861ad6d1) )
-	ROM_LOAD32_WORD( "mpr-18757.21", 0x400004, 0x200000, CRC(25fc92e9) SHA1(226c4c7289b3b6009c1ffea4a171e3fb4e31a67c) )
-	ROM_LOAD32_WORD( "mpr-18755.18", 0x000000, 0x200000, CRC(bf094d9e) SHA1(2cd7130b226a28098191a6caf6fd761bb0bfac7b) )
+	ROM_LOAD32_WORD( "mpr-18757.21", 0x400002, 0x200000, CRC(25fc92e9) SHA1(226c4c7289b3b6009c1ffea4a171e3fb4e31a67c) )
+	ROM_LOAD32_WORD( "mpr-18755.18", 0x800000, 0x200000, CRC(bf094d9e) SHA1(2cd7130b226a28098191a6caf6fd761bb0bfac7b) )
 	ROM_LOAD32_WORD( "mpr-18758.22", 0x800002, 0x200000, CRC(1b5473d0) SHA1(658e33503f6990f4d9a954c63efad5f53d15f3a4) )
 
 	ROM_REGION( 0x800000, "tgp", 0 ) // TGP program? (COPRO socket)