diff --git a/LEGO1/lego/legoomni/src/race/legoracers.cpp b/LEGO1/lego/legoomni/src/race/legoracers.cpp
index f16a488c..14afc7f9 100644
--- a/LEGO1/lego/legoomni/src/race/legoracers.cpp
+++ b/LEGO1/lego/legoomni/src/race/legoracers.cpp
@@ -517,11 +517,12 @@ MxResult LegoRaceCar::HitActor(LegoPathActor* p_actor, MxBool p_bool)
 				}
 			}
 
-			if (p_bool && m_worldSpeed != 0) {
-				return SUCCESS;
+			if (p_bool) {
+				return m_worldSpeed != 0 ? SUCCESS : FAILURE;
+			}
+			else {
+				return FAILURE;
 			}
-
-			return FAILURE;
 		}
 	}
 
@@ -717,11 +718,12 @@ MxResult LegoJetski::HitActor(LegoPathActor* p_actor, MxBool p_bool)
 				}
 			}
 
-			if (p_bool && m_worldSpeed != 0) {
-				return SUCCESS;
+			if (p_bool) {
+				return m_worldSpeed != 0 ? SUCCESS : FAILURE;
+			}
+			else {
+				return FAILURE;
 			}
-
-			return FAILURE;
 		}
 	}
 
diff --git a/LEGO1/realtime/matrix.h b/LEGO1/realtime/matrix.h
index c792f4da..307f4ce5 100644
--- a/LEGO1/realtime/matrix.h
+++ b/LEGO1/realtime/matrix.h
@@ -52,4 +52,8 @@ class Matrix4 {
 	const float* operator[](int idx) const { return m_data[idx]; }
 };
 
+#ifdef COMPAT_MODE
+#include "matrix4d.inl.h"
+#endif
+
 #endif // MATRIX_H
diff --git a/LEGO1/realtime/vector.h b/LEGO1/realtime/vector.h
index defaab57..3841783f 100644
--- a/LEGO1/realtime/vector.h
+++ b/LEGO1/realtime/vector.h
@@ -148,4 +148,10 @@ class Vector4 : public Vector3 {
 	friend class Mx4DPointFloat;
 };
 
+#ifdef COMPAT_MODE
+#include "vector2d.inl.h"
+#include "vector3d.inl.h"
+#include "vector4d.inl.h"
+#endif
+
 #endif // VECTOR_H
diff --git a/LEGO1/realtime/vector4d.inl.h b/LEGO1/realtime/vector4d.inl.h
index a94e8f09..7bfce62d 100644
--- a/LEGO1/realtime/vector4d.inl.h
+++ b/LEGO1/realtime/vector4d.inl.h
@@ -3,6 +3,9 @@
 
 #include "vector.h"
 
+#include <math.h>
+#include <memory.h>
+
 // FUNCTION: LEGO1 0x10002870
 void Vector4::AddImpl(const float* p_value)
 {