diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.Settings.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.Settings.cs
index 1acf0bf35a..70864bcffa 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.Settings.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.Settings.cs
@@ -122,6 +122,9 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 			[Description("Set the Right Difficulty switch on the console")]
 			public bool RightDifficulty { get; set; }
 
+			[Description("Super Charger only, sets whether or not to skip the BIOS intro")]
+			public bool FastScBios { get; set; }
+
 			public A2600SyncSettings Clone()
 			{
 				return (A2600SyncSettings)MemberwiseClone();
diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mAR.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mAR.cs
index 701af6dc6f..1be138143f 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mAR.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Mappers/mAR.cs
@@ -35,8 +35,6 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 {
 	internal class mAR : MapperBase
 	{
-		// TODO: fastscbios setting
-		// TODO: cart ram
 		public mAR(Atari2600 core)
 		{
 			Core = core;
@@ -165,6 +163,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 
 		#endregion
 
+		public override bool HasCartRam
+		{
+			get { return true; }
+		}
+
+		public override ByteBuffer CartRam
+		{
+			get { return _superChargerImage; }
+		}
+
 		public override void HardReset()
 		{
 			_superChargerImage = new ByteBuffer(8192);
@@ -353,7 +361,7 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 			// The scrom.asm code checks a value at offset 109 as follows:
 			//   0xFF -> do a complete jump over the SC BIOS progress bars code
 			//   0x00 -> show SC BIOS progress bars as normal
-			DummyRomCode[109] = 0x00; // TODO: fastscbios setting
+			DummyRomCode[109] = (byte)(Core.SyncSettings.FastScBios ? 0xFF : 0x00);
 
 			// Stella does this, but randomness is bad for determinacy! Hopefully we don't really need it
 			//ourDummyROMCode[281] = mySystem->randGenerator().next();