diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.cs
index 0cb6ecdb65..3417f08649 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.cs
@@ -72,6 +72,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 					(addr, value) => (_mapper as mDPC).DspData[addr] = value));
 			}
 
+			if (_mapper.HasCartRam)
+			{
+				domains.Add(new MemoryDomain(
+					"Cart Ram",
+					_mapper.CartRam.Len,
+					MemoryDomain.Endian.Little,
+					addr => _mapper.CartRam[addr],
+					(addr, value) => _mapper.CartRam[addr] = value));
+			}
+
 			MemoryDomains = new MemoryDomainList(domains);
 		}
 
diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/MapperBase.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/MapperBase.cs
index 1792e202d0..3a513724e0 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/MapperBase.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/MapperBase.cs
@@ -6,6 +6,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 	{
 		public Atari2600 Core { get; set; }
 
+		public virtual bool HasCartRam
+		{
+			get { return false; }
+		}
+
+		public virtual ByteBuffer CartRam
+		{
+			get { return new ByteBuffer(0); }
+		}
+
 		public virtual byte ReadMemory(ushort addr)
 		{
 			return Core.BaseReadMemory(addr);
@@ -28,5 +38,6 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 		public virtual void ClockCpu() { }
 
 		public virtual void HardReset() { }
+
 	}
 }
diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/m3E.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/m3E.cs
index 73d40f540b..6b5c9897b3 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/m3E.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/m3E.cs
@@ -27,6 +27,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 		private bool _hasRam;
 		private ByteBuffer _ram = new ByteBuffer(256 * 1024); // Up to 256k
 
+		public override bool HasCartRam
+		{
+			get { return true; }
+		}
+
+		public override ByteBuffer CartRam
+		{
+			get { return _ram; }
+		}
+
 		public override void SyncState(Serializer ser)
 		{
 			base.SyncState(ser);
diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/m4A50.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/m4A50.cs
index 4531045267..4631ca9efe 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/m4A50.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/m4A50.cs
@@ -42,6 +42,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 		private int _mySliceLow;
 		private int _mySliceMiddle;
 
+		public override bool HasCartRam
+		{
+			get { return true; }
+		}
+
+		public override ByteBuffer CartRam
+		{
+			get { return _myRam; }
+		}
+
 		public override byte ReadMemory(ushort addr)
 		{
 			byte val = 0;
diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mAR.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mAR.cs
index 8108cad2c3..71ed3e90e5 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mAR.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mAR.cs
@@ -21,6 +21,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 			throw new NotImplementedException();
 		}
 
+		public override bool HasCartRam
+		{
+			get { return true; }
+		}
+
+		public override ByteBuffer CartRam
+		{
+			get { return _ram; }
+		}
+
 		public override void SyncState(Serializer ser)
 		{
 			base.SyncState(ser);
diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mCV.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mCV.cs
index 7944eb5f1c..ee7170fefd 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mCV.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mCV.cs
@@ -20,6 +20,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 	{
 		private ByteBuffer _ram = new ByteBuffer(1024);
 
+		public override bool HasCartRam
+		{
+			get { return true; }
+		}
+
+		public override ByteBuffer CartRam
+		{
+			get { return _ram; }
+		}
+
 		public override void SyncState(Serializer ser)
 		{
 			base.SyncState(ser);
diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mEFSC.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mEFSC.cs
index aacccce5e9..d34f0b26de 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mEFSC.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mEFSC.cs
@@ -12,6 +12,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 		private int _bank4k;
 		private ByteBuffer _ram = new ByteBuffer(128);
 
+		public override bool HasCartRam
+		{
+			get { return true; }
+		}
+
+		public override ByteBuffer CartRam
+		{
+			get { return _ram; }
+		}
+
 		public override void SyncState(Serializer ser)
 		{
 			base.SyncState(ser);
diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mF4SC.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mF4SC.cs
index 3c3dfa9d70..3a8f468897 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mF4SC.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mF4SC.cs
@@ -11,6 +11,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 		private int _bank4k;
 		private ByteBuffer _ram = new ByteBuffer(128);
 
+		public override bool HasCartRam
+		{
+			get { return true; }
+		}
+
+		public override ByteBuffer CartRam
+		{
+			get { return _ram; }
+		}
+
 		public override void SyncState(Serializer ser)
 		{
 			base.SyncState(ser);
diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mF6SC.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mF6SC.cs
index 72762878b9..174fe16ccf 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mF6SC.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mF6SC.cs
@@ -11,6 +11,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 		private int _bank4k;
 		private ByteBuffer _ram = new ByteBuffer(128);
 
+		public override bool HasCartRam
+		{
+			get { return true; }
+		}
+
+		public override ByteBuffer CartRam
+		{
+			get { return _ram; }
+		}
+
 		public override void SyncState(Serializer ser)
 		{
 			base.SyncState(ser);
diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mF8SC.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mF8SC.cs
index cd8a2e5576..df8dffad22 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mF8SC.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mF8SC.cs
@@ -11,6 +11,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 		private int _bank_4K;
 		private ByteBuffer _ram = new ByteBuffer(128);
 
+		public override bool HasCartRam
+		{
+			get { return true; }
+		}
+
+		public override ByteBuffer CartRam
+		{
+			get { return _ram; }
+		}
+
 		public override void HardReset()
 		{
 			_bank_4K = 0;
diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mFA2.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mFA2.cs
index e4a85f4a94..ec1ad63d41 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mFA2.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mFA2.cs
@@ -13,6 +13,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 		private int _bank4k;
 		private ByteBuffer _ram = new ByteBuffer(256);
 
+		public override bool HasCartRam
+		{
+			get { return true; }
+		}
+
+		public override ByteBuffer CartRam
+		{
+			get { return _ram; }
+		}
+
 		public override void SyncState(Serializer ser)
 		{
 			base.SyncState(ser);