diff --git a/SortByInternalDifficulty/MU3.ViewData/patch_MusicSelectViewDataList.cs b/SortByInternalDifficulty/MU3.ViewData/patch_MusicSelectViewDataList.cs
index 74c1f17..69d1fdf 100644
--- a/SortByInternalDifficulty/MU3.ViewData/patch_MusicSelectViewDataList.cs
+++ b/SortByInternalDifficulty/MU3.ViewData/patch_MusicSelectViewDataList.cs
@@ -1,7 +1,9 @@
-using MU3.DB;
+using MU3.DataStudio;
+using MU3.DB;
 using MU3.Util;
 using System;
 using System.Collections.Generic;
+using System.Reflection;
 using System.Text;
 
 namespace MU3.ViewData;
@@ -34,6 +36,33 @@ class patch_MusicSelectViewDataList: MusicSelectViewDataList {
         }
     }
 
+    private PropertyInfo reMasterPi = null;
+    private bool isReMaster(Data.MusicData d) {
+        // Fall back for pre-Act3
+        if(reMasterPi == null) {
+            return false;
+        }
+        return (bool)reMasterPi.GetValue(d, null);
+    }
+
+    public extern void orig_create(GameViewData gameViewData, ChapterSelection chapterSelection, FumenDifficulty difficulty, MusicSort1ID sort1, MusicSort2ID sort2);
+
+    public new void create(GameViewData gameViewData, ChapterSelection chapterSelection, FumenDifficulty difficulty, MusicSort1ID sort1, MusicSort2ID sort2) {
+        reMasterPi = typeof(Data.MusicData).GetProperty("isReMaster");
+        orig_create(gameViewData, chapterSelection, difficulty, sort1, sort2);
+    }
+
+    private string getMetaGategoryName(MusicSelectViewData d) {
+        var remas = isReMaster(d.musicViewData.data);
+        if(d.musicViewData.data.isBonusTrack) {
+            return "ボーナストラック";
+        }
+        if(d.musicViewData.data.isLunatic && remas && __sort1 != MusicSort1ID.Level && __sort1 != (MusicSort1ID)patch_MusicSort1ID.InternalLevel) {
+            return "Re:MASTER";
+        }
+        return d.musicViewData.data.isLunatic && !remas ? "LUNATIC" : null;
+    }
+
     private string getCategoryNameByInternalLevel(MusicSelectViewData d) {
         StringBuilder stringBuilder = Singleton<MU3.Sys.System>.instance.getStringBuilder();
         Data.FumenData fumenData = ((d.musicViewData.data == null) ? null : d.musicViewData.data.fumenData[(int)d.difficulty]);
@@ -69,21 +98,31 @@ class patch_MusicSelectViewDataList: MusicSelectViewDataList {
         return orig_createMyListMusicDataAllDifficulty(list, idList, musicData, sort1, initOrder);
     }
 
-    // Enable this for 1.45 Re:MAS inclusion
-    /*private int getMetaSortKey(MusicSelectViewData d, bool forCategorySort) {
+    private extern int orig_getMetaSortKey(MusicSelectViewData d, bool forCategorySort);
+    private int getMetaSortKey(MusicSelectViewData d, bool forCategorySort) {
+        if(reMasterPi == null) {
+            return orig_getMetaSortKey(d, forCategorySort);
+        }
+        var remas = isReMaster(d.musicViewData.data);
+
         if(forCategorySort) {
-            if(d.musicViewData.data.isBonusTrack)
+            if(d.musicViewData.data.isBonusTrack) {
                 return 3;
-            if(d.musicViewData.data.isLunatic && d.musicViewData.data.isReMaster && __sort1 != MusicSort1ID.Level && __sort1 != (MusicSort1ID)patch_MusicSort1ID.InternalLevel)
+            }
+            if(d.musicViewData.data.isLunatic && remas && __sort1 != MusicSort1ID.Level && __sort1 != (MusicSort1ID)patch_MusicSort1ID.InternalLevel) {
                 return 1;
-            if(d.musicViewData.data.isLunatic && !d.musicViewData.data.isReMaster)
+            }
+            if(d.musicViewData.data.isLunatic && !remas) {
                 return 2;
+            }
         } else {
-            if(d.musicViewData.data.isLunatic && d.musicViewData.data.isReMaster && __sort1 != MusicSort1ID.Level && __sort1 != (MusicSort1ID)patch_MusicSort1ID.InternalLevel)
+            if(d.musicViewData.data.isLunatic && remas && __sort1 != MusicSort1ID.Level && __sort1 != (MusicSort1ID)patch_MusicSort1ID.InternalLevel) {
                 return 1;
-            if(d.musicViewData.data.isLunatic && !d.musicViewData.data.isReMaster)
+            }
+            if(d.musicViewData.data.isLunatic && !remas) {
                 return 2;
+            }
         }
         return 0;
-    }*/
+    }
 }
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