diff --git a/src/BizHawk.Client.Common/lua/INamedLuaFunction.cs b/src/BizHawk.Client.Common/lua/INamedLuaFunction.cs
index 1d38ee67f9..618af4adfd 100644
--- a/src/BizHawk.Client.Common/lua/INamedLuaFunction.cs
+++ b/src/BizHawk.Client.Common/lua/INamedLuaFunction.cs
@@ -6,7 +6,7 @@ namespace BizHawk.Client.Common
 {
 	public interface INamedLuaFunction
 	{
-		Action InputCallback { get; }
+		Action Callback { get; }
 
 		Guid Guid { get; }
 
diff --git a/src/BizHawk.Client.Common/lua/LuaFunctionList.cs b/src/BizHawk.Client.Common/lua/LuaFunctionList.cs
index d5b9bc8a1c..e294182b31 100644
--- a/src/BizHawk.Client.Common/lua/LuaFunctionList.cs
+++ b/src/BizHawk.Client.Common/lua/LuaFunctionList.cs
@@ -28,7 +28,7 @@ namespace BizHawk.Client.Common
 		{
 			if (emulator.InputCallbacksAvailable())
 			{
-				emulator.AsInputPollable().InputCallbacks.Remove(function.InputCallback);
+				emulator.AsInputPollable().InputCallbacks.Remove(function.Callback);
 			}
 
 			if (emulator.MemoryCallbacksAvailable())
@@ -64,7 +64,7 @@ namespace BizHawk.Client.Common
 		{
 			if (emulator.InputCallbacksAvailable())
 			{
-				emulator.AsInputPollable().InputCallbacks.RemoveAll(_functions.Select(w => w.InputCallback));
+				emulator.AsInputPollable().InputCallbacks.RemoveAll(_functions.Select(w => w.Callback));
 			}
 
 			if (emulator.MemoryCallbacksAvailable())
diff --git a/src/BizHawk.Client.Common/lua/LuaHelperLibs/EventsLuaLibrary.cs b/src/BizHawk.Client.Common/lua/LuaHelperLibs/EventsLuaLibrary.cs
index 148971d604..0e767d09d3 100644
--- a/src/BizHawk.Client.Common/lua/LuaHelperLibs/EventsLuaLibrary.cs
+++ b/src/BizHawk.Client.Common/lua/LuaHelperLibs/EventsLuaLibrary.cs
@@ -44,10 +44,6 @@ namespace BizHawk.Client.Common
 			Log($"{scope} is not an available scope for {Emulator.Attributes().CoreName}");
 		}
 
-		[LuaMethod("can_use_callback_params", "Returns true. Check this function exists to decide whether to use hacks for older versions w/o parameter support.")]
-		[LuaMethodExample("local mem_callback = event.can_use_callback_params ~= nil and mem_callback or mem_callback_pre_28;")]
-		public bool CanUseCallbackParams()
-			=> true;
 
 		[LuaMethodExample("local steveonf = event.onframeend(\r\n\tfunction()\r\n\t\tconsole.log( \"Calls the given lua function at the end of each frame, after all emulation and drawing has completed. Note: this is the default behavior of lua scripts\" );\r\n\tend\r\n\t, \"Frame name\" );")]
 		[LuaMethod("onframeend", "Calls the given lua function at the end of each frame, after all emulation and drawing has completed. Note: this is the default behavior of lua scripts")]
@@ -72,7 +68,7 @@ namespace BizHawk.Client.Common
 			{
 				try
 				{
-					InputPollableCore.InputCallbacks.Add(nlf.InputCallback);
+					InputPollableCore.InputCallbacks.Add(nlf.Callback);
 					return nlf.Guid.ToString();
 				}
 				catch (NotImplementedException)
diff --git a/src/BizHawk.Client.Common/lua/NamedLuaFunction.cs b/src/BizHawk.Client.Common/lua/NamedLuaFunction.cs
index 9ad566c7f4..2b676dfaaf 100644
--- a/src/BizHawk.Client.Common/lua/NamedLuaFunction.cs
+++ b/src/BizHawk.Client.Common/lua/NamedLuaFunction.cs
@@ -32,19 +32,19 @@ namespace BizHawk.Client.Common
 
 			Guid = Guid.NewGuid();
 
-			Callback = args =>
+			Callback = () =>
 			{
 				try
 				{
-					_function.Call(args);
+					_function.Call();
 				}
 				catch (Exception ex)
 				{
 					logCallback($"error running function attached by the event {Event}\nError message: {ex.Message}");
 				}
 			};
-			InputCallback = () => Callback(Array.Empty<object>());
-			MemCallback = (addr, val, flags) => Callback(new object[] { addr, val, flags });
+
+			MemCallback = (address, value, flags) => Callback();
 		}
 
 		public void DetachFromScript()
@@ -66,9 +66,7 @@ namespace BizHawk.Client.Common
 
 		public string Event { get; }
 
-		private Action<object[]> Callback { get; }
-
-		public Action InputCallback { get; }
+		public Action Callback { get; }
 
 		public MemoryCallbackDelegate MemCallback { get; }