diff --git a/include/menu/ncc/List.hpp b/include/menu/ncc/List.hpp
index d2eb5042..ecd9acad 100755
--- a/include/menu/ncc/List.hpp
+++ b/include/menu/ncc/List.hpp
@@ -28,6 +28,8 @@ public:
     void FillWithCatVars(std::vector<CatVar *> vec);
     void OpenSublist(List *sublist, int dy);
     bool ShouldClose();
+    static void ShowInvalidCatVars();
+    static void ShowMissingCatVars();
 
     static List *FromString(const std::string &string);
 
@@ -48,6 +50,20 @@ public:
     List *open_sublist{ nullptr };
     std::string title;
 };
+class DecoyCatVar
+{
+    CatVar_t type{ CV_SWITCH };
+    const std::string name;
+    int defaults{ 0 };
+    const std::string desc_short{ "" };
+    const std::string desc_long{ "INVALID COMMAND" };
+    bool registered{ false };
+
+public:
+    DecoyCatVar(const std::string value) : desc_short(value)
+    {
+    }
+};
 }
 }
 #endif
diff --git a/src/menu/GUI.cpp b/src/menu/GUI.cpp
index 6be2b76a..e02d5d97 100755
--- a/src/menu/GUI.cpp
+++ b/src/menu/GUI.cpp
@@ -37,8 +37,10 @@ CatVar gui_visible(CV_SWITCH, "gui_visible", "0", "GUI Active",
                    "GUI switch (bind it to a key!)");
 CatVar gui_draw_bounds(CV_SWITCH, "gui_bounds", "0", "Draw Bounds",
                        "Draw GUI elements' bounding boxes");
-// CatVar gui_nullcore(CV_SWITCH, "gui_nullcore", "1", "NullCore GUI", "Use
-// NullCoreCheat GUI");
+CatCommand debug_invalid("debug_invalid", "Display all invalid CatVars",
+                           []() { menu::ncc::List::ShowInvalidCatVars(); });
+CatCommand debug_missing("debug_missing", "Display all missing CatVars",
+                           []() { menu::ncc::List::ShowMissingCatVars(); });
 
 CatGUI::CatGUI()
 {
@@ -76,6 +78,7 @@ int NCGUIColor()
 void CatGUI::Setup()
 {
     menu::ncc::Init();
+    menu::ncc::List::ShowInvalidCatVars();
     root_nullcore = menu::ncc::root;
     gui_visible.OnRegister([](CatVar *var) {
         var->convar->InstallChangeCallback(GUIVisibleCallback);
diff --git a/src/menu/ncc/ItemVariable.cpp b/src/menu/ncc/ItemVariable.cpp
index 7fb19021..1d092554 100755
--- a/src/menu/ncc/ItemVariable.cpp
+++ b/src/menu/ncc/ItemVariable.cpp
@@ -40,7 +40,8 @@ void ItemVariable::Change(float amount)
     {
     case CV_SWITCH:
     {
-        catvar = !catvar;
+        if (catvar.desc_long != "INVALID COMMAND")
+            catvar = !catvar;
     }
     break;
     case CV_ENUM:
@@ -89,7 +90,8 @@ void ItemVariable::OnMousePress()
             capturing = true;
     }
     if (catvar.type == CV_SWITCH)
-        catvar = !catvar;
+        if (catvar.desc_long != "INVALID COMMAND")
+            catvar = !catvar;
 }
 
 void ItemVariable::OnFocusLose()
@@ -107,7 +109,7 @@ void ItemVariable::OnKeyPress(ButtonCode_t key, bool repeat)
     if (capturing)
     {
         if (key == ButtonCode_t::KEY_ESCAPE)
-            key   = (ButtonCode_t) 0;
+            key = (ButtonCode_t) 0;
         catvar    = (int) key;
         capturing = false;
         return;
@@ -159,10 +161,10 @@ void ItemVariable::OnKeyPress(ButtonCode_t key, bool repeat)
 
     if (key == ButtonCode_t::MOUSE_WHEEL_UP)
     {
-        if (catvar.type == CV_FLOAT &&
+        if ((catvar.type == CV_FLOAT || catvar.type == CV_INT) &&
             g_IInputSystem->IsButtonDown(ButtonCode_t::KEY_LSHIFT))
             Change(change * 2);
-        else if (catvar.type == CV_FLOAT &&
+        else if ((catvar.type == CV_FLOAT || catvar.type == CV_INT) &&
                  g_IInputSystem->IsButtonDown(ButtonCode_t::KEY_LCONTROL))
             Change(change / 4);
         else
@@ -189,7 +191,8 @@ void ItemVariable::Draw(int x, int y)
     {
     case CV_SWITCH:
     {
-        val = catvar ? "ON" : "OFF";
+        if (catvar.desc_long != "INVALID COMMAND")
+            val = catvar ? "ON" : "OFF";
     }
     break;
     case CV_INT:
diff --git a/src/menu/ncc/List.cpp b/src/menu/ncc/List.cpp
index 14146321..6a5c23b6 100755
--- a/src/menu/ncc/List.cpp
+++ b/src/menu/ncc/List.cpp
@@ -18,6 +18,7 @@ namespace menu
 {
 namespace ncc
 {
+std::vector<std::string> invalidvars, missingvars, menu_vars;
 
 List::List(std::string title)
     : open_sublist(nullptr), title(title), got_mouse(false),
@@ -100,8 +101,51 @@ CatVar *FindCatVar(const std::string name)
         if (var->name == name)
             return var;
     }
-    logging::Info("can't find %s", name.c_str());
-    throw std::runtime_error("can't find catvar " + name);
+    invalidvars.push_back(name);
+    DecoyCatVar *unknownvar =
+        new DecoyCatVar(format("Error, can't find ", name));
+    logging::Info("Can't find %s", name.c_str());
+    return (CatVar *) unknownvar;
+}
+
+void FindMissingCatVars()
+{
+    for (auto var : CatVarList())
+    {
+        if (std::find(menu_vars.begin(), menu_vars.end(), var->name) ==
+            menu_vars.end())
+            missingvars.push_back(var->name);
+    }
+}
+
+void List::ShowInvalidCatVars()
+{
+    if (invalidvars.size())
+    {
+        g_ICvar->ConsolePrintf("The following CatVars are invalid\n");
+        for (int i = 0; i < invalidvars.size(); i++)
+            g_ICvar->ConsolePrintf("%s\n", invalidvars[i].c_str());
+    }
+    else
+        g_ICvar->ConsolePrintf("No CatVars are invalid\n");
+    static bool init = false;
+    if (!init)
+    {
+        FindMissingCatVars();
+        init = true;
+    }
+}
+
+void List::ShowMissingCatVars()
+{
+    if (missingvars.size())
+    {
+        g_ICvar->ConsolePrintf("The following CatVars are missing\n");
+        for (int i = 0; i < missingvars.size(); i++)
+            g_ICvar->ConsolePrintf("%s\n", missingvars[i].c_str());
+    }
+    else
+        g_ICvar->ConsolePrintf("No CatVars are missing\n");
 }
 // abc def, ghj, [, fdg sgf saqw rter, ], gs
 void FillFromTokens(List *list, const std::vector<std::string> &tokens)
@@ -114,6 +158,7 @@ void FillFromTokens(List *list, const std::vector<std::string> &tokens)
         if (i == tokens.size() - 1 || tokens[i + 1] != "[")
         {
             list->AddChild(new ItemVariable(*FindCatVar(str)));
+            menu_vars.push_back(str);
         }
         else
         {