diff --git a/source/Base/Sphere.cpp b/source/Base/Sphere.cpp
index 0b574ae6..b2fe7152 100644
--- a/source/Base/Sphere.cpp
+++ b/source/Base/Sphere.cpp
@@ -1,6 +1,7 @@
 // ------------------------------------------------------------------------------------------------
 #include "Base/Sphere.hpp"
 #include "Base/Shared.hpp"
+#include "Base/DynArg.hpp"
 #include "Library/Numeric/Random.hpp"
 
 // ------------------------------------------------------------------------------------------------
@@ -559,13 +560,13 @@ void Register_Sphere(HSQUIRRELVM vm)
         // Core Meta-methods
         .Func(_SC("_tostring"), &Sphere::ToString)
         .SquirrelFunc(_SC("_typename"), &Sphere::Typename)
-        .Func(_SC("_cmp"), &Sphere::Cmp)
+        .SquirrelFunc(_SC("cmp"), &SqDynArgFwd< SqDynArgCmpFn< Sphere >, SQFloat, SQInteger, bool, std::nullptr_t, Sphere >)
         // Meta-methods
-        .Func< Sphere (Sphere::*)(const Sphere &) const >(_SC("_add"), &Sphere::operator +)
-        .Func< Sphere (Sphere::*)(const Sphere &) const >(_SC("_sub"), &Sphere::operator -)
-        .Func< Sphere (Sphere::*)(const Sphere &) const >(_SC("_mul"), &Sphere::operator *)
-        .Func< Sphere (Sphere::*)(const Sphere &) const >(_SC("_div"), &Sphere::operator /)
-        .Func< Sphere (Sphere::*)(const Sphere &) const >(_SC("_modulo"), &Sphere::operator %)
+        .SquirrelFunc(_SC("_add"), &SqDynArgFwd< SqDynArgAddFn< Sphere >, SQFloat, SQInteger, bool, std::nullptr_t, Sphere >)
+        .SquirrelFunc(_SC("_sub"), &SqDynArgFwd< SqDynArgSubFn< Sphere >, SQFloat, SQInteger, bool, std::nullptr_t, Sphere >)
+        .SquirrelFunc(_SC("_mul"), &SqDynArgFwd< SqDynArgMulFn< Sphere >, SQFloat, SQInteger, bool, std::nullptr_t, Sphere >)
+        .SquirrelFunc(_SC("_div"), &SqDynArgFwd< SqDynArgDivFn< Sphere >, SQFloat, SQInteger, bool, std::nullptr_t, Sphere >)
+        .SquirrelFunc(_SC("_modulo"), &SqDynArgFwd< SqDynArgModFn< Sphere >, SQFloat, SQInteger, bool, std::nullptr_t, Sphere >)
         .Func< Sphere (Sphere::*)(void) const >(_SC("_unm"), &Sphere::operator -)
         // Properties
         .Prop(_SC("Abs"), &Sphere::Abs)
diff --git a/source/Base/Sphere.hpp b/source/Base/Sphere.hpp
index 99f0fe98..ec327f2c 100644
--- a/source/Base/Sphere.hpp
+++ b/source/Base/Sphere.hpp
@@ -306,6 +306,30 @@ struct Sphere
     */
     Int32 Cmp(const Sphere & s) const;
 
+    /* --------------------------------------------------------------------------------------------
+     * Used by the script engine to compare an instance of this type with a scalar value.
+    */
+    Int32 Cmp(Value s) const
+    {
+        return Cmp(Sphere(s));
+    }
+
+    /* --------------------------------------------------------------------------------------------
+     * Used by the script engine to compare an instance of this type with a scalar value.
+    */
+    Int32 Cmp(Int32 s) const
+    {
+        return Cmp(Sphere(static_cast< Value >(s)));
+    }
+
+    /* --------------------------------------------------------------------------------------------
+     * Used by the script engine to compare an instance of this type with a scalar value.
+    */
+    Int32 Cmp(std::nullptr_t) const
+    {
+        return Cmp(Sphere(static_cast< Value >(0)));
+    }
+
     /* --------------------------------------------------------------------------------------------
      * Used by the script engine to convert an instance of this type to a string.
     */