diff --git a/src/mame/drivers/aristmk5.cpp b/src/mame/drivers/aristmk5.cpp
index 84acd0c41d1..878b7428ed8 100644
--- a/src/mame/drivers/aristmk5.cpp
+++ b/src/mame/drivers/aristmk5.cpp
@@ -7402,10 +7402,10 @@ ROM_START( wcougarua )
 	        Calculated Checksum 0xe4eced9c  (OK)
 	*/
 	ROM_REGION( 0x400000, "game_prg", ROMREGION_ERASEFF )
-	ROM_LOAD32_WORD( "nhg029607.u7",  0x000000, 0x80000, CRC(5037aefc) SHA1(afd7e4cf5b53d5ad44dec359cd24a698188c9d35) )
-	ROM_LOAD32_WORD( "nhg029607.u11", 0x000002, 0x80000, CRC(a9c121a7) SHA1(b8133b00f8b42dd7a3be94753ce7482a58aba8f1) )
-	ROM_LOAD32_WORD( "nhg029607.u8",  0x100000, 0x80000, CRC(496b0295) SHA1(237183a192ad9b4bc133014cc83149d4a7062785) )
-	ROM_LOAD32_WORD( "nhg029607.u12", 0x100002, 0x80000, CRC(fe2bafdc) SHA1(e8b454db44a532d75b3aff323855340695688f0f) )
+	ROM_LOAD32_WORD( "nhg029607.u7",  0x000000, 0x80000, CRC(5037aefc) SHA1(afd7e4cf5b53d5ad44dec359cd24a698188c9d35) )  // 94.982%
+	ROM_LOAD32_WORD( "nhg029607.u11", 0x000002, 0x80000, CRC(a9c121a7) SHA1(b8133b00f8b42dd7a3be94753ce7482a58aba8f1) )  // 94.982%
+	ROM_LOAD32_WORD( "nhg029607.u8",  0x100000, 0x80000, CRC(496b0295) SHA1(237183a192ad9b4bc133014cc83149d4a7062785) )  // base
+	ROM_LOAD32_WORD( "nhg029607.u12", 0x100002, 0x80000, CRC(fe2bafdc) SHA1(e8b454db44a532d75b3aff323855340695688f0f) )  // base
 
 	ROM_REGION( 0x800000, "maincpu", ROMREGION_ERASE00 ) /* ARM Code */
 	ROM_REGION( 0x200000, "vram", ROMREGION_ERASE00 )