diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/IC_74x377.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/IC_74x377.cs
index 95cc3ece34..f4d7cb5bf3 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/IC_74x377.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/IC_74x377.cs
@@ -25,7 +25,9 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 			{
 				case "MAPPER011":
 					break;
-
+				case "MAPPER011_HACKY":
+					bus_conflict = false;
+					break;
 				case "Discrete_74x377-FLEX":
 					break;
 				case "COLORDREAMS-74*377":
diff --git a/output/gamedb/gamedb.txt b/output/gamedb/gamedb.txt
index 3f408ee7f8..5e9820141f 100644
--- a/output/gamedb/gamedb.txt
+++ b/output/gamedb/gamedb.txt
@@ -93,6 +93,9 @@ sha1:7BD102770FE7766BF8430ACDB3C17EE51E30478C	H	Mike Tyson's Punch-Out!! (Hacked
 sha1:536D623BA02A622BDE8E2D7D514AE9785B5E0357	H	Punch Out!! Kirby (Hack) (U)	NES		board=NES-PNROM;PRG=128;CHR=128;WRAM=0
 sha1:F2A8BC888B888FA65DFB303126B130422E34942E	G	Kunio 8-in-1 [p1]	NES		board=MAPPER045
 sha1:27AA5F60474600FEE5C1623D4A0985421680C9FE	H	Mario + Toad (Nuts & Milk Hack)	NES		board=MAPPER000
+sha1:B7DD142AF1FBCC81F3FE88C9278BD6C61B615D09	O	Death Race (AGCI) (Overdump)	NES		board=MAPPER144
+sha1:0FAECB09767528CC2C9CD4FE4EDBD0C6ECEFB999	G	Secret Scout in the Temple of Demise (Color Dreams) (Prototype)	NES		board=MAPPER011_HACKY
+sha1:87C929090C3B04739BAAED90B9A8F40B29327FC2	G	Free Fall (U) (Prototype)	NES		board=MAPPER011_HACKY
 
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