diff --git a/include/m_bg_item.h b/include/m_bg_item.h
index e90fd1c0..9bdc02b1 100644
--- a/include/m_bg_item.h
+++ b/include/m_bg_item.h
@@ -8,16 +8,12 @@
 extern "C" {
 #endif
 
-extern ACTOR* mBI_search_bg_item(Actor_info* info);
-extern void mBI_make_bg_item(GAME_PLAY* play);
 extern void mBI_change_bg_item(GAME_PLAY* play);
 extern void mBI_ct();
 extern void mBI_move(GAME_PLAY* play);
 
 typedef void (*BI_PROC)(GAME_PLAY*);
 
-extern BI_PROC mBI_make_proc;
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/rel/m_bg_item.c b/rel/m_bg_item.c
index 8263d7a3..bd6b9c94 100644
--- a/rel/m_bg_item.c
+++ b/rel/m_bg_item.c
@@ -3,53 +3,65 @@
 #include "m_common_data.h"
 #include "m_name_table.h"
 
-BI_PROC mBI_make_proc;
+static BI_PROC mBI_make_proc;
 
+static ACTOR* mBI_search_bg_item(Actor_info* info) {
+  static const s16 name_data[] = {
+    mAc_PROFILE_BGCHERRYITEM,
+    mAc_PROFILE_BGITEM,
+    mAc_PROFILE_BGWINTERITEM,
+    mAc_PROFILE_BGXMASITEM
+  };
+  
+  ACTOR* actor;
+  int i;
 
-ACTOR* mBI_search_bg_item(Actor_info* info){
-    static const s16 name_data[] = {
-        0x4f, 0x1, 0x50,0x51
-    };
+  for (i = 0; i < 4; i++) {
+    actor = Actor_info_name_search(info,name_data[i], ACTOR_PART_ITEM);
+    if (actor != NULL) {
+      break;
+    }
+  }
+
+  return actor;
+}
+
+static void mBI_make_bg_item(GAME_PLAY* play) {
+  if (mBI_search_bg_item(&play->actor_info) == NULL) {
+    Actor_info_make_actor(
+      &play->actor_info,
+      &play->game,
+      Common_Get(bg_item_profile),
+      0.0f, 0.0f, 0.0f,
+      0, 0, 0,
+      -1, -1,
+      -1,
+      EMPTY_NO,
+      -1,
+      -1,
+      -1
+    );
     
-    int i;
-    for( i = 0; i < 4; i++){
-        if(Actor_info_name_search(info,name_data[i], ACTOR_PART_ITEM) != 0){
-            return;
-        }
-    }
-}
-
-void mBI_make_bg_item(GAME_PLAY* play){
-
-
-    if(mBI_search_bg_item(&play->actor_info) == NULL){
-
-        Actor_info_make_actor(&play->actor_info, &play->game, Common_Get(bg_item_profile),0,
-            0.0f,0.0f,0,0,0 ,-1, -1,-1, EMPTY_NO,-1,-1,-1);
-        mBI_make_proc = NULL;
-    }
-}
-
-void mBI_change_bg_item(GAME_PLAY* play){
-
-    ACTOR* actor = mBI_search_bg_item(&play->actor_info);
-    
-    if(actor != NULL){
-        Actor_delete(actor);
-        mBI_make_proc = mBI_make_bg_item;
-        Common_Set(bg_item_profile, Common_Get(time.bgitem_profile));
-    }
-}
-
-void mBI_ct(){
-
     mBI_make_proc = NULL;
-    
+  }
 }
 
-void mBI_move(GAME_PLAY* play){
+extern void mBI_change_bg_item(GAME_PLAY* play) {
+  ACTOR* actor = mBI_search_bg_item(&play->actor_info);
+  
+  if (actor != NULL) {
+    Actor_delete(actor);
+    mBI_make_proc = mBI_make_bg_item;
+    Common_Set(bg_item_profile, Common_Get(time.bgitem_profile));
+  }
+}
 
-    if(mBI_make_proc != NULL){
-        mBI_make_proc(play);
-    }
-}
\ No newline at end of file
+extern void mBI_ct() {
+  mBI_make_proc = NULL;
+}
+
+extern void mBI_move(GAME_PLAY* play) {
+  if (mBI_make_proc != NULL) {
+    (*mBI_make_proc)(play);
+  }
+}
diff --git a/rel/m_scene_ftr.c b/rel/m_scene_ftr.c
index e3c7283e..e0ab371f 100644
--- a/rel/m_scene_ftr.c
+++ b/rel/m_scene_ftr.c
@@ -3,6 +3,8 @@
 #include "m_scene.h"
 #include "m_play.h"
 
+/* @unused ? mScn_Dma2Bank(...) */
+
 static void mScn_KeepMyRoomBankNew(Object_Exchange_c* exchange, s16 bank_id, size_t size) {
   Object_Bank_c* bank = exchange->banks + exchange->bank_idx;
   
@@ -30,6 +32,8 @@ extern void mScn_ObtainCarpetBank(GAME_PLAY* play) {
   }
 }
 
+/* @unused extern ? mScn_ObtainFurnitureBank(...) */
+
 extern void mScn_ObtainMyRoomBank(GAME_PLAY* play) {
   mScn_ObtainCarpetBank(play);
 }