diff --git a/SabreTools.Library/DatFiles/DatFile.cs b/SabreTools.Library/DatFiles/DatFile.cs
index df6afc55..88c0b253 100644
--- a/SabreTools.Library/DatFiles/DatFile.cs
+++ b/SabreTools.Library/DatFiles/DatFile.cs
@@ -1903,8 +1903,10 @@ namespace SabreTools.Library.DatFiles
 
 				// If we are matching based on names of any sort
 				if ((replaceMode & ReplaceMode.Description) != 0
+					|| (replaceMode & ReplaceMode.MachineType) != 0
 					|| (replaceMode & ReplaceMode.Year) != 0
-					|| (replaceMode & ReplaceMode.Manufacturer) != 0)
+					|| (replaceMode & ReplaceMode.Manufacturer) != 0
+					|| (replaceMode & ReplaceMode.Parents) != 0)
 				{
 					// For comparison's sake, we want to use Machine Name as the base ordering
 					BucketBy(SortedBy.Game, DedupeType.Full);
@@ -1928,6 +1930,10 @@ namespace SabreTools.Library.DatFiles
 										newDatItem.MachineDescription = this[key][0].MachineDescription;
 									}
 								}
+								if ((replaceMode & ReplaceMode.MachineType) != 0)
+								{
+									newDatItem.MachineType = this[key][0].MachineType;
+								}
 								if ((replaceMode & ReplaceMode.Year) != 0)
 								{
 									newDatItem.Year = this[key][0].Year;
@@ -1936,6 +1942,12 @@ namespace SabreTools.Library.DatFiles
 								{
 									newDatItem.Manufacturer = this[key][0].Manufacturer;
 								}
+								if ((replaceMode & ReplaceMode.Parents) != 0)
+								{
+									newDatItem.CloneOf = this[key][0].CloneOf;
+									newDatItem.RomOf = this[key][0].RomOf;
+									newDatItem.SampleOf = this[key][0].SampleOf;
+								}
 							}
 
 							newDatItems.Add(newDatItem);
diff --git a/SabreTools.Library/Data/Flags.cs b/SabreTools.Library/Data/Flags.cs
index f990e409..93c7733c 100644
--- a/SabreTools.Library/Data/Flags.cs
+++ b/SabreTools.Library/Data/Flags.cs
@@ -260,8 +260,10 @@ namespace SabreTools.Library.Data
 
 		// Sorted by machine name
 		Description = Hash << 1,
-		Year = Description << 1,
+		MachineType = Description << 1,
+		Year = MachineType << 1,
 		Manufacturer = Year << 1,
+		Parents = Manufacturer << 1,
 	}
 
 	/// <summary>
diff --git a/SabreTools.Library/README.1ST b/SabreTools.Library/README.1ST
index b5e5bf40..2cb6383f 100644
--- a/SabreTools.Library/README.1ST
+++ b/SabreTools.Library/README.1ST
@@ -1024,6 +1024,14 @@ Options:
 				  will only be overwritten if they are the same as the machine
 				  names.
 
+		  -ugt, --update-game-type	  Update machine type from base DATs
+			  This flag enables updating of machine type from base DATs.
+			  [Both base-replace and reverse-base-replace]
+			 
+		  -up, --update-parents		  Update machine parents from base DATs
+			  This flag enables updating of machine parents (romof, cloneof,
+			  sampleof) from base DATs. [Both base-replace and reverse-base-replace]
+			 
 		  -uy, --update-year		  Update machine years from base DATs
 			  This flag enables updating of machine years from base DATs.
 			 [Both base-replace and reverse-base-replace]
diff --git a/SabreTools/SabreTools.Help.cs b/SabreTools/SabreTools.Help.cs
index c9e665ac..27a2e00e 100644
--- a/SabreTools/SabreTools.Help.cs
+++ b/SabreTools/SabreTools.Help.cs
@@ -1341,6 +1341,18 @@ namespace SabreTools
 					longDescription: "This flag enables updating of machine descriptions from base DATs.");
 			}
 		}
+		private static Feature _updateGameTypeFlag
+		{
+			get
+			{
+				return new Feature(
+					"update-game-type",
+					new List<string>() { "-ugt", "--update-game-type" },
+					"Update machine type from base DATs",
+					FeatureType.Flag,
+					longDescription: "This flag enables updating of machine type from base DATs.");
+			}
+		}
 		private static Feature _updateHashesFlag
 		{
 			get
@@ -1377,6 +1389,18 @@ namespace SabreTools
 					longDescription: "This flag enables updating of item names from base DATs.");
 			}
 		}
+		private static Feature _updateParentsFlag
+		{
+			get
+			{
+				return new Feature(
+					"update-parents",
+					new List<string>() { "-up", "--update-parents" },
+					"Update machine parents from base DATs",
+					FeatureType.Flag,
+					longDescription: "This flag enables updating of machine parents (romof, cloneof, sampleof) from base DATs.");
+			}
+		}
 		private static Feature _updateYearFlag
 		{
 			get
@@ -2647,16 +2671,20 @@ The stats that are outputted are as follows:
 				update[_baseReplaceFlag].AddFeature(_updateHashesFlag);
 				update[_baseReplaceFlag].AddFeature(_updateDescriptionFlag);
 					update[_baseReplaceFlag][_updateDescriptionFlag].AddFeature(_onlySameFlag);
+				update[_baseReplaceFlag].AddFeature(_updateGameTypeFlag);
 				update[_baseReplaceFlag].AddFeature(_updateYearFlag);
 				update[_baseReplaceFlag].AddFeature(_updateManufacturerFlag);
+				update[_baseReplaceFlag].AddFeature(_updateParentsFlag);
 			update.AddFeature(_reverseBaseReplaceFlag);
 				update[_reverseBaseReplaceFlag].AddFeature(_baseDatListInput);
 				update[_reverseBaseReplaceFlag].AddFeature(_updateNamesFlag);
 				update[_reverseBaseReplaceFlag].AddFeature(_updateHashesFlag);
 				update[_reverseBaseReplaceFlag].AddFeature(_updateDescriptionFlag);
 					update[_reverseBaseReplaceFlag][_updateDescriptionFlag].AddFeature(_onlySameFlag);
+				update[_reverseBaseReplaceFlag].AddFeature(_updateGameTypeFlag);
 				update[_reverseBaseReplaceFlag].AddFeature(_updateYearFlag);
 				update[_reverseBaseReplaceFlag].AddFeature(_updateManufacturerFlag);
+				update[_reverseBaseReplaceFlag].AddFeature(_updateParentsFlag);
 			update.AddFeature(_diffCascadeFlag);
 				update[_diffCascadeFlag].AddFeature(_skipFirstOutputFlag);
 			update.AddFeature(_diffReverseCascadeFlag);
diff --git a/SabreTools/SabreTools.cs b/SabreTools/SabreTools.cs
index 72f5e7e7..8e1bdcf0 100644
--- a/SabreTools/SabreTools.cs
+++ b/SabreTools/SabreTools.cs
@@ -570,6 +570,9 @@ namespace SabreTools
 					case "update-description":
 						replaceMode |= ReplaceMode.Description;
 						break;
+					case "update-game-type":
+						replaceMode |= ReplaceMode.MachineType;
+						break;
 					case "update-hashes":
 						replaceMode |= ReplaceMode.Hash;
 						break;
@@ -579,6 +582,9 @@ namespace SabreTools
 					case "update-names":
 						replaceMode |= ReplaceMode.ItemName;
 						break;
+					case "update-parents":
+						replaceMode |= ReplaceMode.Parents;
+						break;
 					case "update-year":
 						replaceMode |= ReplaceMode.Year;
 						break;