diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/BxROM.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/BxROM.cs
index 7a3ee3373c..361bce8559 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/BxROM.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/BxROM.cs
@@ -31,7 +31,9 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 				case "NES-BNROM": //Deadly Towers (U)
 					AssertPrg(128); AssertChr(0); AssertWram(0); AssertVram(8);
 					break;
-
+				case "MAPPER034": // 3-D Battles of World Runner, The (U) [b5].nes
+					// TODO: No idea what to assert here
+					break;
 				default:
 					return false;
 			}