diff --git a/src/BizHawk.Client.EmuHawk/MainForm.Debug.cs b/src/BizHawk.Client.EmuHawk/MainForm.Debug.cs
index 443dc51e5e..e94e70c370 100644
--- a/src/BizHawk.Client.EmuHawk/MainForm.Debug.cs
+++ b/src/BizHawk.Client.EmuHawk/MainForm.Debug.cs
@@ -12,7 +12,6 @@ using BizHawk.Client.EmuHawk.Properties;
 using BizHawk.Common;
 using BizHawk.Emulation.Common;
 using BizHawk.Emulation.Cores;
-using BizHawk.Emulation.Cores.Nintendo.GBA;
 using BizHawk.Emulation.Cores.Nintendo.N64;
 using BizHawk.Emulation.Cores.Nintendo.Sameboy;
 using BizHawk.WinForms.Controls;
@@ -199,18 +198,6 @@ namespace BizHawk.Client.EmuHawk
 							},
 						},
 					},
-					new DebugVSystemMenuItem(VSystemID.Raw.GBA)
-					{
-						DropDownItems =
-						{
-							new DebugVSystemChildItem(
-								"Reproduce #2805",
-								() => ((MGBAMemoryCallbackSystem) Emulator.AsDebuggable().MemoryCallbacks).Debug2805())
-							{
-								RequiresCore = CoreNames.Mgba,
-							},
-						},
-					},
 					new DebugVSystemMenuItem(VSystemID.Raw.N64)
 					{
 						DropDownItems =
diff --git a/src/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/MGBAMemoryCallbackSystem.cs b/src/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/MGBAMemoryCallbackSystem.cs
index 9d6dcd0b1e..ae5ee9c708 100644
--- a/src/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/MGBAMemoryCallbackSystem.cs
+++ b/src/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/MGBAMemoryCallbackSystem.cs
@@ -196,21 +196,6 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBA
 				cb?.Invoke(pc, 0, (uint)MemoryCallbackFlags.AccessExecute);
 			}
 		}
-
-		private MemoryCallbackDelegate DebugCallback = null;
-
-		private bool DebugCallbackExecuted = false;
-
-		public void Debug2805()
-		{
-			DebugCallback = (_, _, _) =>
-			{
-				Console.WriteLine(DebugCallbackExecuted ? "subsequent call" : "first call");
-				Remove(DebugCallback);
-				DebugCallbackExecuted = true;
-			};
-			Add(new MemoryCallback("System Bus", MemoryCallbackType.Write, "Plugin Hook", DebugCallback, 0x020096E0, null));
-		}
 	}
 
 	internal class CallbackContainer