diff --git a/BizHawk.Emulation/Consoles/Nintendo/NES/Core.cs b/BizHawk.Emulation/Consoles/Nintendo/NES/Core.cs
index be8eaa21cf..2a2c18c4b4 100644
--- a/BizHawk.Emulation/Consoles/Nintendo/NES/Core.cs
+++ b/BizHawk.Emulation/Consoles/Nintendo/NES/Core.cs
@@ -238,6 +238,25 @@ namespace BizHawk.Emulation.Consoles.Nintendo
 
 		public byte DummyReadMemory(ushort addr) { return 0; }
 
+		private void ApplySystemBusPoke(int addr, byte value)
+		{
+			if (addr < 0x2000)
+			{
+				ram[(addr & 0x7FF)] = value;
+			}
+			else if (addr < 0x4000)
+			{
+				ppu.WriteReg((addr & 0x07), value);
+			}
+			else if (addr < 0x4020)
+			{
+				WriteReg(addr, value);
+			}
+			else
+			{
+				ApplyGameGenie(addr, value, null); //Apply a cheat to the remaining regions since they have no direct access, this may not be the best way to handle this situation
+			}
+		}
 
 		public byte ReadMemory(ushort addr)
 		{
diff --git a/BizHawk.Emulation/Consoles/Nintendo/NES/NES.cs b/BizHawk.Emulation/Consoles/Nintendo/NES/NES.cs
index 510ea790e5..90feffdd16 100644
--- a/BizHawk.Emulation/Consoles/Nintendo/NES/NES.cs
+++ b/BizHawk.Emulation/Consoles/Nintendo/NES/NES.cs
@@ -325,7 +325,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
 			var RAM = new MemoryDomain("RAM", 0x800, Endian.Little,
 				addr => ram[addr & 0x07FF], (addr, value) => ram[addr & 0x07FF] = value);
 			var SystemBus = new MemoryDomain("System Bus", 0x10000, Endian.Little,
-				addr => ReadMemory((ushort)addr), (addr, value) => WriteMemory((ushort)addr, value));
+				addr => ReadMemory((ushort)addr), (addr, value) => ApplySystemBusPoke(addr, value)); //WriteMemory((ushort)addr, value));
 			var PPUBus = new MemoryDomain("PPU Bus", 0x4000, Endian.Little,
 				addr => ppu.ppubus_peek(addr), (addr, value) => ppu.ppubus_write(addr, value));
 			var CIRAMdomain = new MemoryDomain("CIRAM (nametables)", 0x800, Endian.Little,