diff --git a/Assets/dll/libgambatte.dll b/Assets/dll/libgambatte.dll
index 66d4f1042b..a043013748 100644
Binary files a/Assets/dll/libgambatte.dll and b/Assets/dll/libgambatte.dll differ
diff --git a/Assets/dll/libgambatte.so b/Assets/dll/libgambatte.so
index 10fb840baf..bd2179364b 100644
Binary files a/Assets/dll/libgambatte.so and b/Assets/dll/libgambatte.so differ
diff --git a/src/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs b/src/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs
index 97d16d8f1b..43ac148422 100644
--- a/src/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs
+++ b/src/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs
@@ -427,6 +427,9 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
 				0x06 => "MBC2 ROM+BATTERY",
 				0x08 => "Plain ROM+RAM",
 				0x09 => "Plain ROM+RAM+BATTERY",
+				0x0B => "MMM01 ROM", // fixme: mmm01's proper header is at the end of the rom!
+				0x0C => "MMM01 ROM+RAM",
+				0x0D => "MMM01 ROM+BATTERY",
 				0x0F => "MBC3 ROM+TIMER+BATTERY",
 				0x10 => "MBC3 ROM+TIMER+RAM+BATTERY",
 				0x11 => "MBC3 ROM",
@@ -466,9 +469,9 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
 				case 0x08: break;
 				case 0x09: break;
 
-				case 0x0B: throw new UnsupportedGameException("\"MM01\" Mapper not supported!");
-				case 0x0C: throw new UnsupportedGameException("\"MM01\" Mapper not supported!");
-				case 0x0D: throw new UnsupportedGameException("\"MM01\" Mapper not supported!");
+				case 0x0B: break;
+				case 0x0C: break;
+				case 0x0D: break;
 
 				case 0x0F: break;
 				case 0x10: break;
diff --git a/submodules/gambatte b/submodules/gambatte
index 8b4278807f..1988f6d45b 160000
--- a/submodules/gambatte
+++ b/submodules/gambatte
@@ -1 +1 @@
-Subproject commit 8b4278807f622eac13155ab999b9bcffeb9e73fe
+Subproject commit 1988f6d45b0778c00fb7b48b46585412d9f28fd0