diff --git a/config/SOUE01/rels/d_t_heat_resistNP/symbols.txt b/config/SOUE01/rels/d_t_heat_resistNP/symbols.txt
index 1c550573..7d232197 100644
--- a/config/SOUE01/rels/d_t_heat_resistNP/symbols.txt
+++ b/config/SOUE01/rels/d_t_heat_resistNP/symbols.txt
@@ -2,10 +2,10 @@ _prolog = .text:0x00000000; // type:function size:0x2C scope:global
 _epilog = .text:0x00000030; // type:function size:0x2C scope:global
 _unresolved = .text:0x00000060; // type:function size:0x4 scope:global
 dTgHeatResist_c_classInit__Fv = .text:0x00000070; // type:function size:0x4C
-TgHeatResist__init = .text:0x000000C0; // type:function size:0x54
-fn_444_120 = .text:0x00000120; // type:function size:0x8
-TgHeatResist__update = .text:0x00000130; // type:function size:0x80
-fn_444_1B0 = .text:0x000001B0; // type:function size:0x8
+create__15dTgHeatResist_cFv = .text:0x000000C0; // type:function size:0x54
+doDelete__15dTgHeatResist_cFv = .text:0x00000120; // type:function size:0x8
+actorExecute__15dTgHeatResist_cFv = .text:0x00000130; // type:function size:0x80
+draw__15dTgHeatResist_cFv = .text:0x000001B0; // type:function size:0x8
 __dt__15dTgHeatResist_cFv = .text:0x000001C0; // type:function size:0x5C
 _ctors = .ctors:0x00000000; // type:label scope:global
 _dtors = .dtors:0x00000000; // type:label scope:global
diff --git a/configure.py b/configure.py
index 95217fb3..c535fcbb 100644
--- a/configure.py
+++ b/configure.py
@@ -2475,7 +2475,7 @@ config.libs = [
     Rel(NonMatching, "d_t_group_summon", "REL/d/t/d_t_group_summon.cpp"),
     Rel(NonMatching, "d_t_group_test", "REL/d/t/d_t_group_test.cpp"),
     Rel(NonMatching, "d_t_harp", "REL/d/t/d_t_harp.cpp"),
-    Rel(NonMatching, "d_t_heat_resist", "REL/d/t/d_t_heat_resist.cpp"),
+    Rel(Matching, "d_t_heat_resist", "REL/d/t/d_t_heat_resist.cpp"),
     Rel(Matching, "d_t_holy_water", "REL/d/t/d_t_holy_water.cpp"),
     Rel(NonMatching, "d_t_insect", "REL/d/t/d_t_insect.cpp"),
     Rel(NonMatching, "d_t_ks", "REL/d/t/d_t_ks.cpp"),
diff --git a/include/d/t/d_t_heat_resist.h b/include/d/t/d_t_heat_resist.h
index 4cd6a0c1..e350f0ac 100644
--- a/include/d/t/d_t_heat_resist.h
+++ b/include/d/t/d_t_heat_resist.h
@@ -1,14 +1,23 @@
 #ifndef D_T_HEAT_RESIST_H
 #define D_T_HEAT_RESIST_H
 
-#include "d/a/d_a_base.h"
+#include "common.h"
+#include "d/t/d_tg.h"
+#include "m/m_mtx.h"
 
-class dTgHeatResist_c : public dAcBase_c {
+class dTgHeatResist_c : public dTg_c {
 public:
     dTgHeatResist_c() {}
     virtual ~dTgHeatResist_c() {}
 
+    virtual int create() override;
+    virtual int doDelete() override;
+    virtual int draw() override;
+    virtual int actorExecute() override;
+
 private:
+    /* 0x0FC */ mMtx_c matrix;
+    /* 0x12C */ u8 mInverted;
 };
 
 #endif
diff --git a/src/REL/d/t/d_t_heat_resist.cpp b/src/REL/d/t/d_t_heat_resist.cpp
index 5938aea3..10e436d0 100644
--- a/src/REL/d/t/d_t_heat_resist.cpp
+++ b/src/REL/d/t/d_t_heat_resist.cpp
@@ -1,3 +1,37 @@
 #include "d/t/d_t_heat_resist.h"
 
+#include "d/a/d_a_player.h"
+#include "f/f_base.h"
+#include "toBeSorted/area_math.h"
+
 SPECIAL_ACTOR_PROFILE(TAG_HEAT_RESIST, dTgHeatResist_c, fProfile::TAG_HEAT_RESIST, 0x223, 0, 4);
+
+int dTgHeatResist_c::create() {
+    mInverted = static_cast<u8>(params & 0x3);
+
+    matrixCreateFromPosRotYScale(matrix, position, rotation.y, mScale, nullptr, 0.0f);
+    return SUCCEEDED;
+}
+
+int dTgHeatResist_c::doDelete() {
+    return SUCCEEDED;
+}
+
+int dTgHeatResist_c::actorExecute() {
+    dAcPy_c *player = dAcPy_c::LINK;
+
+    if (mInverted == 1) {
+        if (!checkIfVec3fInMatrix(matrix, player->position)) {
+            player->onForceOrPreventActionFlags(0x8000000);
+        }
+    } else {
+        if (checkIfVec3fInMatrix(matrix, player->position)) {
+            player->onForceOrPreventActionFlags(0x8000000);
+        }
+    }
+    return SUCCEEDED;
+}
+
+int dTgHeatResist_c::draw() {
+    return SUCCEEDED;
+}