diff --git a/pkNX.Game/Editors/TMEditorGG.cs b/pkNX.Game/Editors/TMEditorGG.cs
new file mode 100644
index 00000000..395791f4
--- /dev/null
+++ b/pkNX.Game/Editors/TMEditorGG.cs
@@ -0,0 +1,45 @@
+using System;
+using System.Linq;
+using pkNX.Containers;
+using pkNX.Structures;
+
+namespace pkNX.Game
+{
+    public class TMEditorGG
+    {
+        private readonly int Offset;
+        private readonly NSO NSO;
+        private readonly byte[] Data;
+
+        private const int count = 60;
+
+        public TMEditorGG(byte[] data)
+        {
+            NSO = new NSO(data);
+            Data = NSO.DecompressedRO;
+
+            // tm list is stored immediately after TM item index list
+            var pattern = CodePattern.TMHM_GG;
+            Offset = CodePattern.IndexOfBytes(Data, pattern, 0x200_000);
+            if (Valid)
+                Offset += pattern.Length;
+        }
+
+        public ushort[] GetMoves()
+        {
+            var moves = new ushort[count];
+            for (int i = 0; i < moves.Length; i++)
+                moves[i] = BitConverter.ToUInt16(Data, Offset + (2 * i));
+            return moves;
+        }
+
+        public void SetMoves(ushort[] finalMoves)
+        {
+            var result = finalMoves.SelectMany(BitConverter.GetBytes).ToArray();
+            result.CopyTo(Data, Offset);
+        }
+
+        public bool Valid => Offset > 0;
+        public byte[] Write() => NSO.Write();
+    }
+}
diff --git a/pkNX.Structures/Legality/Legal.cs b/pkNX.Structures/Legality/Legal.cs
index 4b831d00..73e156d2 100644
--- a/pkNX.Structures/Legality/Legal.cs
+++ b/pkNX.Structures/Legality/Legal.cs
@@ -168,12 +168,20 @@ public static int[] GetRandomItemList(GameVersion game)
             {080, new[] {760}}, // Slowbro @ Slowbronite
         };
 
-        public static int[] GetBannedMoves(GameVersion infoGame, IEnumerable<Move> moves)
+        public static int[] GetBannedMoves(GameVersion infoGame, int moveCount)
         {
             if (!GameVersion.GG.Contains(infoGame))
                 return Array.Empty<int>();
 
-            return Enumerable.Range(0, moves.Count()).Except(AllowedMovesGG).ToArray();
+            return Enumerable.Range(0, moveCount).Except(AllowedMovesGG).ToArray();
+        }
+
+        public static int[] GetAllowedMoves(GameVersion infoGame, int moveCount)
+        {
+            if (GameVersion.GG.Contains(infoGame))
+                return AllowedMovesGG;
+
+            return Enumerable.Range(0, moveCount).ToArray();
         }
 
         private static readonly int[] AllowedMovesGG =
diff --git a/pkNX.WinForms/MainEditor/EditorGG.cs b/pkNX.WinForms/MainEditor/EditorGG.cs
index 113cef87..f962fabe 100644
--- a/pkNX.WinForms/MainEditor/EditorGG.cs
+++ b/pkNX.WinForms/MainEditor/EditorGG.cs
@@ -243,5 +243,29 @@ public void EditShinyRate()
             nso.DecompressedText = shiny.Data;
             FileMitm.WriteAllBytes(path, nso.Write());
         }
+
+        public void EditTM()
+        {
+            var path = Path.Combine(ROM.PathExeFS, "main");
+            var data = FileMitm.ReadAllBytes(path);
+            var list = new TMEditorGG(data);
+            if (!list.Valid)
+            {
+                WinFormsUtil.Alert("Not able to find tm data in exefs.");
+                return;
+            }
+
+            var moves = list.GetMoves();
+            var allowed = Legal.GetAllowedMoves(ROM.Game, ROM.Data.MoveData.Length);
+            var names = ROM.GetStrings(TextName.MoveNames);
+            var editor = new TMList(moves, allowed, names);
+            editor.ShowDialog();
+            if (!editor.Modified)
+                return;
+
+            list.SetMoves(editor.FinalMoves);
+            data = list.Write();
+            FileMitm.WriteAllBytes(path, data);
+        }
     }
 }
\ No newline at end of file
diff --git a/pkNX.WinForms/Subforms/BTTE.cs b/pkNX.WinForms/Subforms/BTTE.cs
index b59ab33f..5ecd4fa9 100644
--- a/pkNX.WinForms/Subforms/BTTE.cs
+++ b/pkNX.WinForms/Subforms/BTTE.cs
@@ -535,7 +535,7 @@ private void B_Randomize_Click(object sender, EventArgs e)
             SaveEntry();
             var moves = Game.Data.MoveData.LoadAll();
             var rmove = new MoveRandomizer(Game.Info, moves, Personal);
-            int[] banned = Legal.GetBannedMoves(Game.Info.Game, moves);
+            int[] banned = Legal.GetBannedMoves(Game.Info.Game, moves.Length);
             rmove.Initialize((MovesetRandSettings)PG_Moves.SelectedObject, banned);
             var rspec = new SpeciesRandomizer(Game.Info, Personal);
             rspec.Initialize((SpeciesSettings)PG_Species.SelectedObject);
diff --git a/pkNX.WinForms/Subforms/PokeDataUI.cs b/pkNX.WinForms/Subforms/PokeDataUI.cs
index de5c6726..0f744902 100644
--- a/pkNX.WinForms/Subforms/PokeDataUI.cs
+++ b/pkNX.WinForms/Subforms/PokeDataUI.cs
@@ -479,7 +479,7 @@ private void B_RandLearn_Click(object sender, EventArgs e)
             var settings = (LearnSettings)PG_Learn.SelectedObject;
             var rand = new LearnsetRandomizer(ROM.Info, Editor.Learn.LoadAll(), Editor.Personal);
             var moves = ROM.Data.MoveData.LoadAll();
-            int[] banned = Legal.GetBannedMoves(ROM.Info.Game, moves);
+            int[] banned = Legal.GetBannedMoves(ROM.Info.Game, moves.Length);
             rand.Initialize(moves, settings, EditUtil.Settings.Move, banned);
             rand.Execute();
             LoadIndex(CB_Species.SelectedIndex);
diff --git a/pkNX.WinForms/Subforms/TMList.Designer.cs b/pkNX.WinForms/Subforms/TMList.Designer.cs
new file mode 100644
index 00000000..27850ce5
--- /dev/null
+++ b/pkNX.WinForms/Subforms/TMList.Designer.cs
@@ -0,0 +1,97 @@
+namespace pkNX.WinForms
+{
+    partial class TMList
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.B_Save = new System.Windows.Forms.Button();
+            this.B_RTM = new System.Windows.Forms.Button();
+            this.dgvTM = new System.Windows.Forms.DataGridView();
+            ((System.ComponentModel.ISupportInitialize)(this.dgvTM)).BeginInit();
+            this.SuspendLayout();
+            //
+            // B_Save
+            //
+            this.B_Save.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
+            this.B_Save.Location = new System.Drawing.Point(185, 12);
+            this.B_Save.Name = "B_Save";
+            this.B_Save.Size = new System.Drawing.Size(60, 23);
+            this.B_Save.TabIndex = 1;
+            this.B_Save.Text = "Save";
+            this.B_Save.UseVisualStyleBackColor = true;
+            this.B_Save.Click += new System.EventHandler(this.B_Save_Click);
+            //
+            // B_RTM
+            //
+            this.B_RTM.Location = new System.Drawing.Point(12, 12);
+            this.B_RTM.Name = "B_RTM";
+            this.B_RTM.Size = new System.Drawing.Size(75, 23);
+            this.B_RTM.TabIndex = 7;
+            this.B_RTM.Text = "Randomize";
+            this.B_RTM.UseVisualStyleBackColor = true;
+            this.B_RTM.Click += new System.EventHandler(this.B_RTM_Click);
+            //
+            // dgvTM
+            //
+            this.dgvTM.AllowUserToAddRows = false;
+            this.dgvTM.AllowUserToDeleteRows = false;
+            this.dgvTM.AllowUserToResizeColumns = false;
+            this.dgvTM.AllowUserToResizeRows = false;
+            this.dgvTM.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
+            | System.Windows.Forms.AnchorStyles.Left)
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.dgvTM.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            this.dgvTM.Location = new System.Drawing.Point(12, 41);
+            this.dgvTM.Name = "dgvTM";
+            this.dgvTM.RowHeadersVisible = false;
+            this.dgvTM.Size = new System.Drawing.Size(233, 333);
+            this.dgvTM.TabIndex = 6;
+            //
+            // TMList
+            //
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(257, 386);
+            this.Controls.Add(this.B_RTM);
+            this.Controls.Add(this.dgvTM);
+            this.Controls.Add(this.B_Save);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow;
+            this.MaximizeBox = false;
+            this.Name = "TMList";
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+            this.Text = "TM List";
+            ((System.ComponentModel.ISupportInitialize)(this.dgvTM)).EndInit();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+        private System.Windows.Forms.Button B_Save;
+        private System.Windows.Forms.Button B_RTM;
+        private System.Windows.Forms.DataGridView dgvTM;
+    }
+}
\ No newline at end of file
diff --git a/pkNX.WinForms/Subforms/TMList.cs b/pkNX.WinForms/Subforms/TMList.cs
new file mode 100644
index 00000000..dc346239
--- /dev/null
+++ b/pkNX.WinForms/Subforms/TMList.cs
@@ -0,0 +1,97 @@
+using System;
+using System.Linq;
+using System.Windows.Forms;
+using pkNX.Game;
+using pkNX.Randomization;
+
+namespace pkNX.WinForms
+{
+    public sealed partial class TMList : Form
+    {
+        private readonly int[] AllowedMoves;
+        private readonly string[] MoveNames;
+        private readonly ushort[] OriginalMoves;
+
+        public TMList(ushort[] moves, int[] allowed, string[] movenames)
+        {
+            InitializeComponent();
+            MoveNames = EditorUtil.SanitizeMoveList(movenames);
+            AllowedMoves = allowed;
+            SetupDGV(MoveNames);
+            LoadMoves(moves);
+            OriginalMoves = moves;
+        }
+
+        public bool Modified { get; set; }
+        public ushort[] FinalMoves { get; private set; }
+
+        private void SetupDGV(string[] list)
+        {
+            dgvTM.Columns.Clear();
+            DataGridViewColumn dgvIndex = new DataGridViewTextBoxColumn();
+            {
+                dgvIndex.HeaderText = "Index";
+                dgvIndex.DisplayIndex = 0;
+                dgvIndex.Width = 45;
+                dgvIndex.ReadOnly = true;
+                dgvIndex.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
+                dgvIndex.SortMode = DataGridViewColumnSortMode.NotSortable;
+            }
+            DataGridViewComboBoxColumn dgvMove = new DataGridViewComboBoxColumn();
+            {
+                dgvMove.HeaderText = "Move";
+                dgvMove.DisplayIndex = 1;
+                foreach (string t in list)
+                    dgvMove.Items.Add(t); // add only the Names
+
+                dgvMove.Width = 133;
+                dgvMove.FlatStyle = FlatStyle.Flat;
+                dgvIndex.SortMode = DataGridViewColumnSortMode.NotSortable;
+            }
+            dgvTM.Columns.Add(dgvIndex);
+            dgvTM.Columns.Add(dgvMove);
+        }
+
+        public void LoadMoves(ushort[] tmlist)
+        {
+            dgvTM.Rows.Clear();
+
+            for (int i = 0; i < tmlist.Length; i++)
+            {
+                dgvTM.Rows.Add();
+                dgvTM.Rows[i].Cells[0].Value = (i + 1).ToString();
+                dgvTM.Rows[i].Cells[1].Value = MoveNames[tmlist[i]];
+            }
+        }
+
+        public ushort[] SaveMoves()
+        {
+            ushort[] moves = new ushort[dgvTM.RowCount];
+            for (int i = 0; i < moves.Length; i++)
+                moves[i] = (ushort)Array.IndexOf(MoveNames, dgvTM.Rows[i].Cells[1].Value);
+
+            return moves;
+        }
+
+        private void B_Save_Click(object sender, EventArgs e)
+        {
+            Modified = true;
+            FinalMoves = SaveMoves();
+            Close();
+        }
+
+        private void B_RTM_Click(object sender, EventArgs e)
+        {
+            var moves = GetRandomMoves();
+            LoadMoves(moves);
+            System.Media.SystemSounds.Asterisk.Play();
+        }
+
+        private ushort[] GetRandomMoves()
+        {
+            var allowed = AllowedMoves.Select(z => (ushort)z).Except(new ushort[] { 0 }).ToArray();
+            var rand = new GenericRandomizer<ushort>(allowed);
+            return rand.GetMany(OriginalMoves.Length);
+        }
+    }
+}
diff --git a/pkNX.WinForms/Subforms/TMList.resx b/pkNX.WinForms/Subforms/TMList.resx
new file mode 100644
index 00000000..1af7de15
--- /dev/null
+++ b/pkNX.WinForms/Subforms/TMList.resx
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
\ No newline at end of file
diff --git a/pkNX.WinForms/pkNX.WinForms.csproj b/pkNX.WinForms/pkNX.WinForms.csproj
index 25660b96..d05a01d8 100644
--- a/pkNX.WinForms/pkNX.WinForms.csproj
+++ b/pkNX.WinForms/pkNX.WinForms.csproj
@@ -89,6 +89,12 @@
     <Compile Include="Subforms\BTTE.designer.cs">
       <DependentUpon>BTTE.cs</DependentUpon>
     </Compile>
+    <Compile Include="Subforms\TMList.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Subforms\TMList.Designer.cs">
+      <DependentUpon>TMList.cs</DependentUpon>
+    </Compile>
     <Compile Include="Subforms\ShinyRate.cs">
       <SubType>Form</SubType>
     </Compile>
@@ -149,6 +155,9 @@
     <EmbeddedResource Include="Subforms\BTTE.resx">
       <DependentUpon>BTTE.cs</DependentUpon>
     </EmbeddedResource>
+    <EmbeddedResource Include="Subforms\TMList.resx">
+      <DependentUpon>TMList.cs</DependentUpon>
+    </EmbeddedResource>
     <EmbeddedResource Include="Subforms\ShinyRate.resx">
       <DependentUpon>ShinyRate.cs</DependentUpon>
     </EmbeddedResource>