diff --git a/BizHawk.MultiClient/Gameboy/Debugger.cs b/BizHawk.MultiClient/Gameboy/Debugger.cs
index 888e250386..1c0ef55db0 100644
--- a/BizHawk.MultiClient/Gameboy/Debugger.cs
+++ b/BizHawk.MultiClient/Gameboy/Debugger.cs
@@ -15,12 +15,16 @@ namespace BizHawk.Emulation.Consoles.Gameboy
 {
 	public partial class Debugger : Form, Gameboy.IDebuggerAPI
 	{
-		readonly Gameboy gb;
-		public Debugger(Gameboy gb)
+		Gameboy gb;
+		public Debugger()
+		{
+			InitializeComponent();
+		}
+
+		public void LoadCore(Gameboy gb)
 		{
 			this.gb = gb;
 			gb.DebuggerAPI = this;
-			InitializeComponent();
 			Refresh();
 		}
 
@@ -76,13 +80,15 @@ namespace BizHawk.Emulation.Consoles.Gameboy
 		bool Running = false;
 		void DoRun()
 		{
-			Running = true;
-			gb.RunForever();
-			Running = false;
+			Global.MainForm.UnpauseEmulator();
+			//Running = true;
+			//gb.RunForever();
+			//Running = false;
 		}
 
 		void DoBreak()
 		{
+			Global.MainForm.PauseEmulator(); //adelikat: This is probably "rounding" the break to the nearest frame, but without it, break fails
 			gb.DebugBreak = true;
 		}
 
@@ -400,5 +406,24 @@ namespace BizHawk.Emulation.Consoles.Gameboy
 			autoloadToolStripMenuItem.Checked = Global.Config.AutoloadGBDebugger;
 		}
 
+		public void UpdateValues()
+		{
+			if (!this.IsHandleCreated || this.IsDisposed) return;
+			Refresh();
+		}
+
+		public void Restart()
+		{
+			if (!this.IsHandleCreated || this.IsDisposed) return;
+
+			if (Global.Emulator is Gameboy)
+			{
+				LoadCore(Global.Emulator as Gameboy);
+			}
+			else
+			{
+				this.Close();
+			}
+		}
 	}
 }
diff --git a/BizHawk.MultiClient/MainForm.MenuItems.cs b/BizHawk.MultiClient/MainForm.MenuItems.cs
index bb7c193b60..cbe90838ef 100644
--- a/BizHawk.MultiClient/MainForm.MenuItems.cs
+++ b/BizHawk.MultiClient/MainForm.MenuItems.cs
@@ -1065,7 +1065,7 @@ namespace BizHawk.MultiClient
 
 		private void debuggerToolStripMenuItem1_Click(object sender, EventArgs e)
 		{
-			Global.MainForm.OpenGameboyDebugger();
+			Global.MainForm.LoadGBDebugger();
 		}
 
 		private void tAStudioToolStripMenuItem_Click(object sender, EventArgs e)
diff --git a/BizHawk.MultiClient/MainForm.cs b/BizHawk.MultiClient/MainForm.cs
index dfc0703f0a..fc6097ce9f 100644
--- a/BizHawk.MultiClient/MainForm.cs
+++ b/BizHawk.MultiClient/MainForm.cs
@@ -70,6 +70,7 @@ namespace BizHawk.MultiClient
 		public ToolBox ToolBox1 = new ToolBox();
 		public TI83KeyPad TI83KeyPad1 = new TI83KeyPad();
 		public TAStudio TAStudio1 = new TAStudio();
+		public Debugger GBDebugger = new Debugger();
 #if WINDOWS
 		public LuaConsole LuaConsole1 = new LuaConsole();
 #endif
@@ -1924,6 +1925,7 @@ namespace BizHawk.MultiClient
 			PCEBGViewer1.UpdateValues();
 			PCEBGViewer1.Generate(); // TODO: just a makeshift. PCE core should provide callbacks.
 			TAStudio1.UpdateValues();
+			GBDebugger.UpdateValues();
 		}
 
 		private unsafe Image MakeScreenshotImage()
@@ -2449,6 +2451,7 @@ namespace BizHawk.MultiClient
 			PCEBGViewer1.Restart();
 			TI83KeyPad1.Restart();
 			Cheats1.Restart();
+			GBDebugger.Restart();
 			ToolBox1.Restart();
 #if WINDOWS
 			LuaConsole1.Restart();
@@ -2780,12 +2783,17 @@ namespace BizHawk.MultiClient
 #endif
 		}
 
-		public void OpenGameboyDebugger()
+		public void LoadGBDebugger()
 		{
 			if (Global.Emulator is Gameboy)
 			{
-				Debugger gbDebugger = new Debugger(Global.Emulator as Gameboy);
-				gbDebugger.Show();
+				if (!GBDebugger.IsHandleCreated || GBDebugger.IsDisposed)
+				{
+					GBDebugger.LoadCore(Global.Emulator as Gameboy);
+					GBDebugger.Show();
+				}
+				else
+					GBDebugger.Focus();
 			}
 		}
 
diff --git a/BizHawk.MultiClient/tools/TAStudio.cs b/BizHawk.MultiClient/tools/TAStudio.cs
index a2d4240c15..3c6e24ba1c 100644
--- a/BizHawk.MultiClient/tools/TAStudio.cs
+++ b/BizHawk.MultiClient/tools/TAStudio.cs
@@ -312,7 +312,6 @@ namespace BizHawk.MultiClient
 
 		private void PauseButton_Click(object sender, EventArgs e)
 		{
-
 			Global.MainForm.TogglePause();
 		}
 
diff --git a/BizHawk.MultiClient/tools/ToolBox.cs b/BizHawk.MultiClient/tools/ToolBox.cs
index 49060e6637..3abfd04544 100644
--- a/BizHawk.MultiClient/tools/ToolBox.cs
+++ b/BizHawk.MultiClient/tools/ToolBox.cs
@@ -133,7 +133,7 @@ namespace BizHawk.MultiClient
 
 		private void toolStripButton6_Click(object sender, EventArgs e)
 		{
-			Global.MainForm.OpenGameboyDebugger();
+			Global.MainForm.LoadGBDebugger();
 		}
 	}
 }