diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/AxROM.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/AxROM.cs
index 1fd065e37f..317e1c0caa 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/AxROM.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/AxROM.cs
@@ -36,6 +36,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 					break;
 
 				case "NES-AMROM": //time lord
+				case "HVC-AMROM":
 					//http://forums.nesdev.com/viewtopic.php?p=95438
 					//adding 723 cycles to FrameAdvance_ppudead() does indeed fix it
 					AssertPrg(128); AssertChr(0); AssertVram(8); AssertWram(0);
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/IC_74x377.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/IC_74x377.cs
index 952ea4969d..e7731a5b46 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/IC_74x377.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/IC_74x377.cs
@@ -28,10 +28,13 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 				case "Discrete_74x377-FLEX":
 					break;
 				case "COLORDREAMS-74*377":
-					AssertPrg(32,64,128); AssertChr(16,32,64,128); AssertVram(0); AssertWram(0);
+					AssertPrg(32, 64, 128); AssertChr(16, 32, 64, 128); AssertVram(0); AssertWram(0);
+					break;
+
+				case "AGCI-47516":
+					SetMirrorType(Cart.pad_h, Cart.pad_v);
 					break;
 
-			
 				case "AGCI-50282": // death race
 				case "MAPPER144":
 					bus_conflict_50282 = true;
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/TxROM.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/TxROM.cs
index 9c0822167d..81be8d31f5 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/TxROM.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/TxROM.cs
@@ -51,6 +51,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 					AssertBattery(false);
 					break;
 				case "NES-TFROM": //legacy of the wizard
+				case "HVC-TFROM":
 					AssertPrg(128); AssertChr(32, 64); AssertVram(0); AssertWram(0);
 					AssertBattery(false);
 					break;
@@ -68,6 +69,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 				case "KONAMI-TLROM": //Super C
 				case "HVC-TLROM": //8 eyes (J)
 				case "UNIF_NES-TLROM": // Gaiapolis (obviously a clone board, but which one?)
+				case "ACCLAIM-TLROM":
 					AssertPrg(128, 256, 512); AssertChr(64, 128, 256); AssertVram(0); AssertWram(0);
 					AssertBattery(false);
 					break;
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/NROM.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/NROM.cs
index 341e32d877..1985fcef34 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/NROM.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/NROM.cs
@@ -42,6 +42,10 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 				case "JALECO-JF-03":
 				case "NAMCOT-3305":
 				case "SUNSOFT-NROM-256":
+				case "TAITO-NROM-128":
+				case "IREM-NROM-256":
+				case "NAMCOT-3303":
+				case "NAMCOT-3311":
 					AssertPrg(8, 16, 32); 
 					AssertChr(8); AssertVram(0); AssertWram(0, 8);
 					break;
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Namcot1xx/Mapper206.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Namcot1xx/Mapper206.cs
index 4a682ab86e..f047c19428 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Namcot1xx/Mapper206.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Namcot1xx/Mapper206.cs
@@ -48,6 +48,9 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 				case "TENGEN-800030": // Pac-Mania (U), etc
 					AssertPrg(64, 128); AssertChr(32, 64); AssertVram(0); AssertWram(0);
 					break;
+				case "TENGEN-800002":
+					AssertPrg(64); AssertChr(64); AssertVram(0); AssertWram(0);
+					break;
 				case "NES-DE1ROM":
 					AssertPrg(128); AssertChr(64); AssertVram(0); AssertWram(0);
 					break;
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/SxROM.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/SxROM.cs
index 9e642d3f05..c96839123d 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/SxROM.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/SxROM.cs
@@ -341,6 +341,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 					AssertPrg(32); AssertChr(16,32); AssertVram(0); AssertWram(0);
 					break;
 				case "NES-SFROM": //bubble bobble
+				case "HVC-SFROM":
 				case "NES-SF1ROM":
 					AssertPrg(128, 256); AssertChr(16, 32, 64); AssertVram(0); AssertWram(0);
 					break;
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/UxROM.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/UxROM.cs
index 2cd49b7559..457209e705 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/UxROM.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/UxROM.cs
@@ -41,6 +41,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 				case "KONAMI-UNROM":
 				case "NES-UNEPROM": // proto
 				case "IREM-UNROM":
+				case "TAITO-UNROM":
 					AssertPrg(128); AssertChr(0); AssertVram(8);
 					//AssertWram(0); //JJ - Tobidase Daisakusen Part 2 (J) includes WRAM
 					break;
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/VRC1.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/VRC1.cs
index 92feb7b3ea..34e43e9c1e 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/VRC1.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/VRC1.cs
@@ -42,6 +42,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 					break;
 				case "KONAMI-VRC-1":
 				case "JALECO-JF-20":
+				case "JALECO-JF-22":
 					AssertPrg(128); AssertChr(128); AssertVram(0); AssertWram(0);
 					break;
 				default: