diff --git a/PKHeX.Core/Saves/SAV6.cs b/PKHeX.Core/Saves/SAV6.cs
index 6788091ef..b562ce21c 100644
--- a/PKHeX.Core/Saves/SAV6.cs
+++ b/PKHeX.Core/Saves/SAV6.cs
@@ -429,6 +429,11 @@ public string Saying5
             get => Util.TrimFromZero(Encoding.Unicode.GetString(Data, TrainerCard + 0x7C + 0x22 * 4, 0x22));
             set => Encoding.Unicode.GetBytes(value.PadRight(value.Length + 1, '\0')).CopyTo(Data, TrainerCard + 0x7C + 0x22 * 4);
         }
+        public bool IsMegaEvolutionUnlocked
+        {
+            get => Data[TrainerCard + 0x14A] == 1;
+            set => Data[TrainerCard + 0x14A] = (byte)(value ? 1 : 0);
+        }
 
         public int M
         {
diff --git a/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_Trainer.Designer.cs b/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_Trainer.Designer.cs
index 2dc870f18..48ddf7b21 100644
--- a/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_Trainer.Designer.cs	
+++ b/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_Trainer.Designer.cs	
@@ -202,8 +202,9 @@ private void InitializeComponent()
             this.Tab_Multiplayer = new System.Windows.Forms.TabPage();
             this.Tab_Maison = new System.Windows.Forms.TabPage();
             this.Tab_Appearance = new System.Windows.Forms.TabPage();
-            this.TB_TRNick = new System.Windows.Forms.TextBox();
             this.L_TRNick = new System.Windows.Forms.Label();
+            this.TB_TRNick = new System.Windows.Forms.TextBox();
+            this.CHK_MegaUnlocked = new System.Windows.Forms.CheckBox();
             ((System.ComponentModel.ISupportInitialize)(this.PB_Badge8)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.PB_Badge6)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.PB_Badge4)).BeginInit();
@@ -2071,6 +2072,7 @@ private void InitializeComponent()
             // 
             // Tab_Multiplayer
             // 
+            this.Tab_Multiplayer.Controls.Add(this.CHK_MegaUnlocked);
             this.Tab_Multiplayer.Controls.Add(this.L_MultiplayerSprite);
             this.Tab_Multiplayer.Controls.Add(this.GB_Sayings);
             this.Tab_Multiplayer.Controls.Add(this.PB_Sprite);
@@ -2147,6 +2149,15 @@ private void InitializeComponent()
             this.Tab_Appearance.Text = "Appearance";
             this.Tab_Appearance.UseVisualStyleBackColor = true;
             // 
+            // L_TRNick
+            // 
+            this.L_TRNick.Location = new System.Drawing.Point(68, 230);
+            this.L_TRNick.Name = "L_TRNick";
+            this.L_TRNick.Size = new System.Drawing.Size(128, 20);
+            this.L_TRNick.TabIndex = 74;
+            this.L_TRNick.Text = "Trainer Nickname:";
+            this.L_TRNick.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
+            // 
             // TB_TRNick
             // 
             this.TB_TRNick.Font = new System.Drawing.Font("Courier New", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
@@ -2158,14 +2169,15 @@ private void InitializeComponent()
             this.TB_TRNick.Text = "WWWWWWWWWWWW";
             this.TB_TRNick.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;
             // 
-            // L_TRNick
+            // CHK_MegaUnlocked
             // 
-            this.L_TRNick.Location = new System.Drawing.Point(68, 230);
-            this.L_TRNick.Name = "L_TRNick";
-            this.L_TRNick.Size = new System.Drawing.Size(128, 20);
-            this.L_TRNick.TabIndex = 74;
-            this.L_TRNick.Text = "Trainer Nickname:";
-            this.L_TRNick.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
+            this.CHK_MegaUnlocked.AutoSize = true;
+            this.CHK_MegaUnlocked.Location = new System.Drawing.Point(123, 216);
+            this.CHK_MegaUnlocked.Name = "CHK_MegaUnlocked";
+            this.CHK_MegaUnlocked.Size = new System.Drawing.Size(149, 17);
+            this.CHK_MegaUnlocked.TabIndex = 76;
+            this.CHK_MegaUnlocked.Text = "Mega Evolution Unlocked";
+            this.CHK_MegaUnlocked.UseVisualStyleBackColor = true;
             // 
             // SAV_Trainer
             // 
@@ -2397,5 +2409,6 @@ private void InitializeComponent()
         private System.Windows.Forms.DateTimePicker CAL_HoFTime;
         private System.Windows.Forms.Label L_TRNick;
         private System.Windows.Forms.TextBox TB_TRNick;
+        private System.Windows.Forms.CheckBox CHK_MegaUnlocked;
     }
 }
diff --git a/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_Trainer.cs b/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_Trainer.cs
index 8a5eb0075..3fa9ba872 100644
--- a/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_Trainer.cs	
+++ b/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_Trainer.cs	
@@ -215,6 +215,8 @@ public SAV_Trainer(SaveFile sav)
             for (int i = 0; i < statdata.Length / 2; i++)
                 CB_Stats.Items.Add(statdata[2 * i + 1]);
             CB_Stats.SelectedIndex = 0;
+
+            CHK_MegaUnlocked.Checked = SAV.IsMegaEvolutionUnlocked;
         }
         private readonly string[] statdata;
         private bool editing;
@@ -571,6 +573,8 @@ private void Save()
 
             if (SAV.LastSavedDate.HasValue)
                 SAV.LastSavedDate = new DateTime(CAL_LastSavedDate.Value.Year, CAL_LastSavedDate.Value.Month, CAL_LastSavedDate.Value.Day, CAL_LastSavedTime.Value.Hour, CAL_LastSavedTime.Value.Minute, 0);
+
+            SAV.IsMegaEvolutionUnlocked = CHK_MegaUnlocked.Checked;
         }
 
         private void ClickOT(object sender, MouseEventArgs e)