diff --git a/include/d/d_bg_s_movebg_actor.h b/include/d/d_bg_s_movebg_actor.h
index 8bc36aa16..af44ff277 100644
--- a/include/d/d_bg_s_movebg_actor.h
+++ b/include/d/d_bg_s_movebg_actor.h
@@ -15,6 +15,7 @@ class dBgS_MoveBgActor : public fopAc_ac_c {
 public:
     /* 0x290 */ dBgW* mpBgW;
     /* 0x294 */ Mtx mBgMtx;
+    /* 0x2C4 */ /* vtable */
 
     dBgS_MoveBgActor();
     int MoveBGCreateHeap();
@@ -36,6 +37,8 @@ public:
     static const char* m_name;
     static int m_dzb_id;
     static MoveBGActor_SetFunc m_set_func;
-};
+};  // Size: 0x2C8
+
+STATIC_ASSERT(sizeof(dBgS_MoveBgActor) == 0x2C8);
 
 #endif /* D_BG_S_MOVEBG_ACTOR_H */
\ No newline at end of file
diff --git a/include/f_op/f_op_actor.h b/include/f_op/f_op_actor.h
index 45060435e..912dd309e 100644
--- a/include/f_op/f_op_actor.h
+++ b/include/f_op/f_op_actor.h
@@ -182,27 +182,33 @@ class JntHit_c;
 
 struct fopAc_cullSizeSphere {
 public:
-#ifndef __INTELLISENSE__
+#ifdef __INTELLISENSE__
+    /* 0x0 */ Vec mCenter;
+    /* 0xC */ f32 mRadius;
+#else
+    /* 0x0 */ cXyz mCenter;
+    /* 0xC */ f32 mRadius;
+
     fopAc_cullSizeSphere() {}
     fopAc_cullSizeSphere(cXyz, float);
     ~fopAc_cullSizeSphere() {}
 #endif
-
-    /* 0x0 */ Vec mCenter;
-    /* 0xC */ f32 mRadius;
 };
 
 struct fopAc_cullSizeBox {
 public:
-#ifndef __INTELLISENSE__
+#ifdef __INTELLISENSE__
+    /* 0x0 */ Vec mMin;
+    /* 0xC */ Vec mMax;
+#else
     fopAc_cullSizeBox() {}
     fopAc_cullSizeBox(const fopAc_cullSizeBox&);
     fopAc_cullSizeBox(cXyz, cXyz);
     ~fopAc_cullSizeBox() {}
-#endif
 
     /* 0x0 */ cXyz mMin;
     /* 0xC */ cXyz mMax;
+#endif
 };
 
 class fopAc_ac_c : public leafdraw_class {
diff --git a/include/f_op/f_op_actor_mng.h b/include/f_op/f_op_actor_mng.h
index 956d02310..188d1fc3d 100644
--- a/include/f_op/f_op_actor_mng.h
+++ b/include/f_op/f_op_actor_mng.h
@@ -386,11 +386,15 @@ bool fopAcM_entrySolidHeap_(fopAc_ac_c* p_actor, heapCallbackFunc p_heapCallback
 bool fopAcM_entrySolidHeap(fopAc_ac_c* p_actor, heapCallbackFunc p_heapCallback, u32 size);
 
 inline void fopAcM_SetMin(fopAc_ac_c* p_actor, f32 minX, f32 minY, f32 minZ) {
+#ifndef __INTELLISENSE__
     p_actor->mCull.mBox.mMin.set(minX, minY, minZ);
+#endif
 }
 
 inline void fopAcM_SetMax(fopAc_ac_c* p_actor, f32 maxX, f32 maxY, f32 maxZ) {
+#ifndef __INTELLISENSE__
     p_actor->mCull.mBox.mMax.set(maxX, maxY, maxZ);
+#endif
 }
 
 void fopAcM_setCullSizeBox(fopAc_ac_c* p_actor, f32 minX, f32 minY, f32 minZ, f32 maxX, f32 maxY,