diff --git a/include/d/actor/d_a_obj_akabe.h b/include/d/actor/d_a_obj_akabe.h
index 73a234a97..dd3c0948c 100644
--- a/include/d/actor/d_a_obj_akabe.h
+++ b/include/d/actor/d_a_obj_akabe.h
@@ -29,7 +29,7 @@ namespace daObjAkabe {
         s32 prm_get_arg0() const { return daObj::PrmAbstract(this, PRM_ARG0_W, PRM_ARG0_S); }
     
         s32 _create();
-        BOOL create_heap();
+        u8 create_heap();
         bool _delete();
         void init_scale();
         void init_mtx();
diff --git a/include/d/actor/d_a_obj_swheavy.h b/include/d/actor/d_a_obj_swheavy.h
index 04e5ee21d..c96a9a51b 100644
--- a/include/d/actor/d_a_obj_swheavy.h
+++ b/include/d/actor/d_a_obj_swheavy.h
@@ -43,7 +43,7 @@ namespace daObjSwheavy {
         void rev_switch() const { fopAcM_revSwitch(const_cast<Act_c*>(this), prm_get_swSave()); }
     
         static BOOL solidHeapCB(fopAc_ac_c*);
-        BOOL create_heap();
+        u8 create_heap();
         s32 _create();
         bool _delete();
         void set_mtx();
diff --git a/src/d/actor/d_a_obj_akabe.cpp b/src/d/actor/d_a_obj_akabe.cpp
index 61cd20316..a5a63ec92 100644
--- a/src/d/actor/d_a_obj_akabe.cpp
+++ b/src/d/actor/d_a_obj_akabe.cpp
@@ -8,9 +8,6 @@
 #include "d/res/res_akabed.h"
 #include "d/res/res_akabek.h"
 #include "d/res/res_nbox.h"
-#include "d/d_item.h"
-#include "d/d_item_data.h"
-#include "d/d_cc_d.h"
 #include "d/d_procname.h"
 #include "d/d_com_inf_game.h"
 #include "m_Do/m_Do_mtx.h"
@@ -25,12 +22,12 @@ namespace daObjAkabe {
 
     /* 00000078-0000009C       .text solidHeapCB__Q210daObjAkabe5Act_cFP10fopAc_ac_c */
     BOOL Act_c::solidHeapCB(fopAc_ac_c* i_this) {
-        return ((Act_c*)i_this)->create_heap() & 0xFF; // Fakematch (see comment in create_heap)
+        return ((Act_c*)i_this)->create_heap();
     }
 
     /* 0000009C-000001A4       .text create_heap__Q210daObjAkabe5Act_cFv */
-    BOOL Act_c::create_heap() {
-        bool rt = false;
+    u8 Act_c::create_heap() {
+        bool ret = false;
 
         mpBgW = new dBgW();
         if (mpBgW != NULL) {
@@ -38,15 +35,16 @@ namespace daObjAkabe {
             cBgD_t * bgw_data = (cBgD_t*)dComIfG_getObjectRes(M_arcname[mType], dzb[mType]);
             JUT_ASSERT(0x82, bgw_data != NULL);
             if (!mpBgW->Set(bgw_data, cBgW::MOVE_BG_e, &mMtx))
-                rt = true;
+                ret = true;
         }
 
-        // Fakematch: create_heap should have return type bool based on the clrlwi in solidHeapCB,
-        // but this part doesn't match unless the return variable and the return type are both BOOL.
-        BOOL ret = rt;
-        if (!rt)
+        if (!ret) {
             mpBgW = NULL;
+            return ret;
+        }
 
+        // Fakematch? This function should probably have return type bool, but the codegen towards the
+        // end here doesn't work unless the return type is u8.
         return ret;
     }
 
@@ -96,8 +94,9 @@ namespace daObjAkabe {
     /* 00000360-000003F8       .text _delete__Q210daObjAkabe5Act_cFv */
     bool Act_c::_delete() {
         if (mbAppear) {
-            if (mpBgW != NULL && mpBgW->ChkUsed())
-            dComIfG_Bgsp()->Release(mpBgW);
+            if (mpBgW != NULL && mpBgW->ChkUsed()) {
+                dComIfG_Bgsp()->Release(mpBgW);
+            }
 
             dComIfG_resDelete(&mPhs, M_arcname[mType]);
         }
diff --git a/src/d/actor/d_a_obj_swheavy.cpp b/src/d/actor/d_a_obj_swheavy.cpp
index 7b776e7be..06c0ea9ff 100644
--- a/src/d/actor/d_a_obj_swheavy.cpp
+++ b/src/d/actor/d_a_obj_swheavy.cpp
@@ -57,11 +57,11 @@ const daObjSwheavy::Attr_c daObjSwheavy::Act_c::M_attr[4] = {
 
 /* 00000078-0000009C       .text solidHeapCB__Q212daObjSwheavy5Act_cFP10fopAc_ac_c */
 BOOL daObjSwheavy::Act_c::solidHeapCB(fopAc_ac_c* i_this) {
-    return static_cast<daObjSwheavy::Act_c*>(i_this)->create_heap() & 0xFF; // Fakematch?
+    return static_cast<daObjSwheavy::Act_c*>(i_this)->create_heap();
 }
 
 /* 0000009C-0000032C       .text create_heap__Q212daObjSwheavy5Act_cFv */
-BOOL daObjSwheavy::Act_c::create_heap() {
+u8 daObjSwheavy::Act_c::create_heap() {
     J3DModelData* mdl_1_data = (J3DModelData*) dComIfG_getObjectRes(M_arcname, HHBOT_BDL_HHBOT1);
     JUT_ASSERT(0x116, mdl_1_data != NULL);
     mpModel1 = mDoExt_J3DModel__create(mdl_1_data, 0x80000, 0x11000022);
@@ -99,6 +99,8 @@ BOOL daObjSwheavy::Act_c::create_heap() {
         mpBgW1 = NULL;
         mpBgW2 = NULL;
     }
+    // Fakematch? This function should probably have return type bool, but the codegen towards the
+    // end here doesn't work unless the return type is u8.
     return success;
 }