diff --git a/data/uking_functions.csv b/data/uking_functions.csv
index bfd4066a..6417839f 100644
--- a/data/uking_functions.csv
+++ b/data/uking_functions.csv
@@ -6520,7 +6520,7 @@
 0x000000710011cd2c,AI_Action_EventOpenGetDemo::dtorDelete,52,
 0x000000710011cd60,AI_Action_EventOpenGetDemo::init,8,
 0x000000710011cd68,AI_Action_EventOpenGetDemo::enter,112,
-0x000000710011cdd8,GameDataMgr::setBoolByIter,196,
+0x000000710011cdd8,GameDataMgr::setBoolByIter,196,_ZN4ksys3gdt7Manager7setBoolEbNS0_10FlagHandleE
 0x000000710011ce9c,AI_Action_EventOpenGetDemo::calc,240,
 0x000000710011cf8c,AI_Action_EventOpenGetDemo::leave,68,
 0x000000710011cfd0,AI_Action_EventOpenGetDemo::loadParams,108,
@@ -72739,7 +72739,7 @@
 0x0000007100d6cd40,aoc2::Instance::dtorDelete,100,_ZN5uking4aoc218SingletonDisposer_D0Ev
 0x0000007100d6cda4,aoc2::createInstance,136,_ZN5uking4aoc214createInstanceEPN4sead4HeapE
 0x0000007100d6ce2c,aoc2::ctor,524,_ZN5uking4aoc2C1Ev
-0x0000007100d6d038,aoc2::setAocHardModeEnabledFlag,96,
+0x0000007100d6d038,aoc2::setAocHardModeEnabledFlag,96,_ZN5uking4aoc222setHardModeEnabledFlagEPN4ksys3gdt7Manager10ResetEventE
 0x0000007100d6d098,aoc2::initGameDataIters,212,_ZN5uking4aoc215initFlagHandlesEPN4ksys3gdt7Manager11ReinitEventE
 0x0000007100d6d16c,aoc2::dtor,228,_ZN5uking4aoc2D1Ev
 0x0000007100d6d250,aoc2::dtorDelete,36,_ZN5uking4aoc2D0Ev
@@ -72751,12 +72751,12 @@
 0x0000007100d6d410,sub_7100D6D410,304,
 0x0000007100d6d540,aoc2::shouldApplyMasterModeDamageMultiplier,6164,_ZN5uking4aoc237shouldApplyMasterModeDamageMultiplierERKN4ksys3act20ActorConstDataAccessE
 0x0000007100d6ed54,aoc2::buffDamage,40,_ZN5uking4aoc210buffDamageERi
-0x0000007100d6ed7c,aoc2::initHardModeFlag,172,
-0x0000007100d6ee28,aoc2::setAocFlag2,172,
-0x0000007100d6eed4,aoc2::setIsLastPlayHardMode,60,
-0x0000007100d6ef10,aoc2::setIsLastPlayHardModeToFalse,76,
+0x0000007100d6ed7c,aoc2::initHardModeFlag,172,_ZN5uking4aoc226loadIsLastPlayHardModeFlagEv
+0x0000007100d6ee28,aoc2::setAocFlag2,172,_ZN5uking4aoc218loadIsHardModeFlagEv
+0x0000007100d6eed4,aoc2::setIsLastPlayHardMode,60,_ZN5uking4aoc227storeIsLastPlayHardModeFlagEv
+0x0000007100d6ef10,aoc2::setIsLastPlayHardModeToFalse,76,_ZN5uking4aoc227resetIsLastPlayHardModeFlagEv
 0x0000007100d6ef5c,aoc2::isTestOfStrengthDungeon,396,_ZNK5uking4aoc222isTestOfStrengthShrineEv
-0x0000007100d6f0e8,aoc2::calc,20,
+0x0000007100d6f0e8,aoc2::calc,20,_ZN5uking4aoc24calcEv
 0x0000007100d6f0fc,aoc2::rankUpEnemy,7780,_ZN5uking4aoc211rankUpEnemyERKN4sead14SafeStringBaseIcEERKN4ksys3map6ObjectEPPKc
 0x0000007100d70f60,sub_7100D70F60,48,_ZN4sead9Delegate1IN5uking4aoc2EPN4ksys3gdt7Manager10ResetEventEE6invokeES7_
 0x0000007100d70f90,sub_7100D70F90,92,_ZNK4sead9Delegate1IN5uking4aoc2EPN4ksys3gdt7Manager10ResetEventEE5cloneEPNS_4HeapE
@@ -74264,7 +74264,7 @@
 0x0000007100dd0a6c,GameDataMgr::setCurrentRupeeFlagName,12,
 0x0000007100dd0a78,GameDataMgr::requestResetAllToInitial,16,
 0x0000007100dd0a88,GameDataMgr::getAndSetShrineQuestAndKassFlags,3628,
-0x0000007100dd18b4,GameDataMgr::setBoolByKey,164,
+0x0000007100dd18b4,GameDataMgr::setBoolByKey,164,_ZN4ksys3gdt7Manager7setBoolEbRKN4sead14SafeStringBaseIcEE
 0x0000007100dd1958,GameDataMgr::getAndSetShrineQuestFlagsAndKassDlc2,1416,
 0x0000007100dd1ee0,GameDataMgr::setStringInArrayByKey,184,
 0x0000007100dd1f98,GameDataMgr::setBoolByKeyB,164,
diff --git a/src/Game/DLC/aoc2.cpp b/src/Game/DLC/aoc2.cpp
index 41473d20..59076d34 100644
--- a/src/Game/DLC/aoc2.cpp
+++ b/src/Game/DLC/aoc2.cpp
@@ -37,6 +37,11 @@ aoc2::aoc2()
     setHardModeChange(HardModeChange::ApplyDamageMultiplier, true);
 }
 
+void aoc2::setHardModeEnabledFlag(ksys::gdt::Manager::ResetEvent*) {
+    ksys::gdt::Manager::instance()->setBool(true, mAoCHardModeEnabledFlag);
+    mGdtResetSlot.release();
+}
+
 void aoc2::initFlagHandles(ksys::gdt::Manager::ReinitEvent*) {
     auto* gdm = ksys::gdt::Manager::instance();
     mHardModeHighScoreFlag = gdm->getS32Handle(sData.flag_name_HardMode_HighScore);
@@ -114,6 +119,42 @@ bool aoc2::shouldApplyMasterModeDamageMultiplier(const ksys::act::ActorConstData
     return false;
 }
 
+void aoc2::buffDamage(s32& damage) {
+    damage = damage * 1.5f;
+    if (damage == 1) {
+        damage = 2;
+    }
+}
+
+void aoc2::loadIsLastPlayHardModeFlag() {
+    bool value{};
+    ksys::gdt::Manager::instance()->getBool(mIsLastPlayHardModeFlag, &value);
+    const bool x = value;
+#ifdef MATCHING_HACK_NX_CLANG
+    asm("");
+#endif
+    setFlag(Flag::EnableHardMode, x);
+}
+
+void aoc2::loadIsHardModeFlag() {
+    bool value{};
+    ksys::gdt::Manager::instance()->getBool(mAoCHardModeEnabledFlag, &value);
+    const bool x = value;
+#ifdef MATCHING_HACK_NX_CLANG
+    asm("");
+#endif
+    setFlag(Flag::EnableHardMode, x);
+}
+
+void aoc2::storeIsLastPlayHardModeFlag() {
+    ksys::gdt::Manager::instance()->setBool(checkFlag(Flag::EnableHardMode),
+                                            mIsLastPlayHardModeFlag);
+}
+
+void aoc2::resetIsLastPlayHardModeFlag() {
+    ksys::gdt::Manager::instance()->setBool(false, "IsLastPlayHardMode");
+}
+
 bool aoc2::isTestOfStrengthShrine() const {
     if (mMapType != "CDungeon")
         return false;
@@ -129,6 +170,11 @@ bool aoc2::isTestOfStrengthShrine() const {
     return false;
 }
 
+void aoc2::calc() {
+    volatile u32 unused = 0;
+    static_cast<void>(unused);
+}
+
 bool aoc2::rankUpEnemy(const sead::SafeString& actor_name, const ksys::map::Object& obj,
                        const char** new_name) {
     if (obj.getFlags().isOn(ksys::map::Object::Flag::HasUniqueName) ||
@@ -267,11 +313,4 @@ bool aoc2::rankUpEnemy(const sead::SafeString& actor_name, const ksys::map::Obje
     return true;
 }
 
-void aoc2::buffDamage(s32& damage) {
-    damage = damage * 1.5f;
-    if (damage == 1) {
-        damage = 2;
-    }
-}
-
 }  // namespace uking
diff --git a/src/Game/DLC/aoc2.h b/src/Game/DLC/aoc2.h
index e881d6a3..3d6c612c 100644
--- a/src/Game/DLC/aoc2.h
+++ b/src/Game/DLC/aoc2.h
@@ -29,6 +29,14 @@ public:
 
     void init(sead::Heap* heap);
 
+    void loadIsLastPlayHardModeFlag();
+    void loadIsHardModeFlag();
+
+    void storeIsLastPlayHardModeFlag();
+    void resetIsLastPlayHardModeFlag();
+
+    void calc();
+
     void nerfHpRestore(f32* hp) const;
     void nerfHpRestore(s32* hp) const;
     void modifyEnemyNoticeDuration(f32* value) const;
@@ -44,7 +52,10 @@ public:
 
     void setHardModeChange(HardModeChange flag, bool on) { mHardModeChanges.changeBit(flag, on); }
     bool isHardModeChangeOn(HardModeChange flag) const { return mHardModeChanges.isOnBit(flag); }
+
+    void setFlag(Flag flag, bool on) { mFlags.changeBit(flag, on); }
     bool checkFlag(Flag flag) const { return mFlags.isOnBit(flag); }
+
     f32 getMultiplier(MultiplierType type) const { return mMultipliers[type]; }
 
 private: